PsL Monthly 1994 January

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ST-01: Statistics and Math ------------- 0261 Analysis Small Programs Disk ------------- FFT 1.6 Sampson, Steve $0 is a statistics program that uses the Fast Fourier Transform to produce a Frequency Domain display from the Time Domain data input. Fast Fourier Transform (FFTRANS) Halloran, Mike $0 contains FORTH code to implement the FFT transform, and do some simple character graphics on a terminal. LineQ Baker, Wayne G. $25 solves up to 40 linear equations simultaneously using the Gaussian Elimination Method. LNRegr.BAS is a linear regression program. MultLnrg.BAS Alonso, J. R. F. $? calculates multiple linear regression coefficients. NonLin Whitman, Dave $? performs non-linear least squares analysis to determine parameters to fit any function to observed data. PolyFit is an example of the use of systems of linear equations to produce a polynomial equation which approximates the behavior of experimentally obtained data points as closely as possible. Regress Engineering Software, Inc. $? uses regression analysis to find equations of curves that most closely fit the ordered data sets (X,Y) entered, and then allows the user to interpolate values based on the equation selected. Stats contains an assortment of statistical programs. (BASIC required.) -------------------------------- END OF SMALL PROGRAMS DISK #0261 -------------------------------- ---------------- 2850 Analysis #2 Small Programs Disk ---------------- Adapt LEDS Publishing Co., Inc. $? is a forecasting program that features Time Series Analysis with adaptive filtering, which works on the theory that the best future forecast can be made if a set of weights is found that best forecasts the available past data. BASist 1.1 Hodges, Morrison M.D. $? is a basic statistics program. It takes a series of numbers and calculates a variety of statistics, including the mean, median, variance, standard deviation, coefficient of variation, measures of skewness and kurtosis, as well as the standard errors and confidence limits for these statistics. Finally, the Kolmogorov-Smirnov Dmax statistic is presented (K-S Dmax is an index is normality of distribution), and the null hypothesis test for the K-S Dmax is stated for the 5% level. CHI-SQ.BAS does chi-square calculations. Confidence Level Calculator (CONLVL) Ford, L. M. $15 calculates (statistical) confidence levels for small data sets and the number of tests required to reach user requested confidence levels. ElStat Floddy, Dale R. $0 is a simple, menu-driven statistics program. Features include descriptive stats (mean, sample variance, standard deviation), correlation, two-sample t-tests, chi-square, and one- and two-factor ANOVA. EQNSolve.BAS will solve a system of "n" linearequations in "n" unknowns. LIN-REG.BAS is a linear regression program. Gauss Ng, Thomas $10 is a numerical analysis program. It is for engineers and other professionals who frequently need to perform matrix computations. It operates on square matrices such as those with an equal number of rows and columns, up to a maximum size of six rows by six columns. LSPR 1.0 Sund, S.E. $8 is a linear polynomial regression program. It finds the coefficients of a linear least squares equation. Tandem Queuing Simulation (TQSIM) JJO Software $5 simulates multiserver queuing elements whose arrival rates and service times can be approximated by the Poisson distribution. -------------------------------- END OF SMALL PROGRAMS DISK #2850 -------------------------------- -------------- 1555 Curve Fit Small Programs Disk -------------- Curve derives the linear, exponential, logarithmic, and power equations to fit a set of input data points x(I),y(I). All the equations are converted to the linear form Y=A+BX, and the linear form is fit to the data by the method of least mean squares. Forecst Loy, Michael D. $10 is designed to analyze time-series data and develop a smoothed curve that allows for a more accurate extrapolation of past data. This is not another curvefitting program. While the program does generate a correlation coefficient, it does not attempt to force an equation on the data. This program is useful for individuals and businesses that need to predict future values (i.e. profits, sales) based on past history which is highly variable. LeastQ 2.1 Fox, John D. $0 is a general purpose curve fitting program designed to find the coefficients a[i] of a function, y(x), of the form: (1) y(x) = a[0] + a[1]*f1(x) + a[2] *f2(x) + . . . . or (2) Chisq = Sum(k = 1;Npts) of (y[k] -ycalc(x[k])) ^2 /err[k]^2. Sample data sets are contained in the file DATA.ARC which requires ARCE or PKXARC to extract. The program requires an 8087 math chip and CGA-compatible card/monitor. Turbo Pascal source code is included. List2Fit (LIST2FI) Lemm, Bob $0 aids in describing data for computer modeling. It uses the Least Squares Fit method of describing a set of X-Y points. EGA is required for graphics display. NLFITD 2.6 Hood, William G. $0 is a nonlinear curve fitter. Marquardt's algorithm is used to find values of parameters that make an equation fit a group of data points in a least squares sense. The equation can be nonlinear with regard to parameters. Normal-Z computes areas under the normal distribution probability curve from the mean to a designated `Z' value. This program also can compute `Z' values from a given area. PwrStar 1.12 provides a polynomial best fit to a given set of data by the method of least squares. The user may interactively choose up to a 10th order polynomial fit and get an automatic display of the input and the fitted curve. The files SAMPLE#.DAT go with PWRSTAR. -------------------------------- END OF SMALL PROGRAMS DISK #1555 -------------------------------- --------- 0702 Math Small Programs Disk --------- A_Solver 1.0 Ryan Software $0 is an expression solver. For example, 29*2^4 resolves to 464. `C' source code is included, as is an OBJ file that can be linked into any program to provide equation solving in your own programs. Bin-CVT Relf, Robert B. $? converts positive integers between bases 2,10 and 16. It will handle binary to 16 bits, decimal to 65535, hexadecimal to ffff. DIV Hilliard, Cino $0 is a high precision division routine that divides very large numbers very, very quickly. ZBASIC source code is included. Eval 1.1 TriSoft Technologies $5 parses and solves a mathematical expression, optionally showing intermediate evaluation steps in the process. Example: EVAL Sin(3)=Cos(6tan(45))-Sqrt(3*Ln(Exp(3)))^2 EZ-Convert 1.0 (EZC) Driscoll, Brian S. $15 converts between various units of measure. Other conversion programs in the PsL are either not as extensive as this one or they force you to choose from a set of predefined relationships. For example, one will convert between pints and liters but not between quarts and liters. However some of the others cover some units not covered by this one. EZ-Convert's categories are Length, Area, Volume, Weight, and Temperature. EZTrig Thornton, Dan $10 is an easy to use program that quickly solves oblique and right triangles by input of values for variables listed on a graphics depiction of a triangle. Useful for engineers, students, and anybody interested in trig. May not work right on some VGA systems. Fourier.BAS is a fast fourier transform program. Func3 Walker, Tad $0 computes trigonometry and other miscellaneous mathematical functions. MathFunc.BAS (MATHFNC) Bagshaw, Tony $? computes complex mathematical functions. Matrix Ruzinsky, Steven A. $? finds B and/or the inverse of A. Matrixss Schneider, Scott $0 solves matrix algebra problems. Matrix2 Hutchinson, William M. $? is a matrix inversion program to which the equation solutions have been added. It is configured for up to 32 equations. Rather than using Gaussian elimination (triangularizing the input matrix), the program iterates a matrix inversion using Newton's method. The significant point is that even though no inverse can be found for an equation set which includes dependent (or the same) equations, a solution is found which satisfies the input equations. TP5 source code is included. Primes Walker, Tad $0 is a prime numbers generator. -------------------------------- END OF SMALL PROGRAMS DISK #0702 -------------------------------- ------------------------- 1947 Calculators and Math Small Programs Disk ------------------------- Complex Variable Calculator 1.4 (CVCALC) Moshier, Steve $? is a 100-digit calculator program. It can do arithmetic, Fortran-style algebraic syntax, and various built-in mathematical functions. It is not a 10-key type of calculator. one or more equations can be entered on one line, separated by semicolons. NoMajor Obenchain, Bob $0 calculates the expected percentage of acceptable lots in single-, double-, or triple-stage trinomial sampling in which acceptance implies that NO MAJOR Nonconformances were observed. MS-C5 source included. RandNorm.BAS is used to calculate 1000 random normal variables. TriCalc 2.5 TriSoft Technologies $10 is a pop-up calculator that solves expressions as opposed to just working like an adding machine. Results are returned in both standard and scientific notation. res:45k UltraPre is an ultra-precise calculator. BASIC required. ProCal Miller, Robert D. and Osterhagen, William A. $20-$30 solves a wide variety of algebraic, trigonometric and technical problems using arithmetic operations and more than fifty pre-defined functions. In addition, it permits user-defined formulas and named variables which may be saved to disk and later reused. Technical users will appreciate the precision and wide range of floating point numbers: all calculations are done in 80-bit floating point whether the numeric processor (8087, 287 or 387) chip is installed or not. Functions are accurate to very near the arithmetic limits. Programmers will find it especially useful since it will do exact arithmetic on long (32-bit) integers, has a full set of logical operators, and does bit manipulation. Additional number bases of two, eight, and sixteen may be used in calculations. For financial work and planning, a set of calendar functions are an integral part of ProCALC. SE Carder, David B. $? is a program to solve systems of algebraic linear equations in many variables. SolveQu is an example of how to solve simultaneous equations in BASIC. Volume Compean, Thomas $? solves problems involving common geometric shapes. It will also provide you with the volume of the specified shape. -------------------------------- END OF SMALL PROGRAMS DISK #1947 -------------------------------- ------------- 2465 Plotting Small Programs Disk ------------- 3DGraph Martin, Joe $0 is a 3 dimensional equation plotter. Plotted on an imaginary xyz coordinate system. You have the ability to rotate the graph, determine the object to image perspective distances, adjust the X and Y ranges as well as their increments, state translations of both the X and the Y axes and scale on both X and Y axes. EpPlot plots x,y relationships & file for Epson plotter. Exponentially Weighted Moving Index Plots (EWMIPLO) accepts either keyboard or ASCII batch input, calls analysis routines for exponentially weighted averages, and displays approximate central 90% (+/- 1.65 sigma) forecast intervals in IBM-compatible CGA medium resolution graphics mode using functions from the Essential (South Mountain) Graphics 2.0 Library. Fit 2.0 Lewis, Ronald W. $0 fits data to straight line, logarithmic curve, exponential curve, power curve or polynomial regression. The program computes slope, intercept, correlation coefficient. It also finds X and Y predictions and plots fit. Func1.BAS and Func2.BAS are function plotting programs. Liss and Liss-87 plot Lissajous patterns on screen. Lissajous patterns result when one function of an independent variable is plotted on the X-axis of an orthogonal curve, and another function of the same independent variable is plotted on the Y-axis. SciSubv.BAS is for plotting equally spaced data values. Screen Plot (SPLOT) Hook, William G. $15 will plot x-y data on the screen or Epson-compatible printer. Up to four different sets of data can be on the same plot. -------------------------------- END OF SMALL PROGRAMS DISK #2465 -------------------------------- ------------------------ 3339 Miscellaneous Stats Small Programs Disk ------------------------ AudtSamp (SAMPT) Fishback, Peter L. $10 is an aid for CPA's. It will generate random numbers, do sample size selection, and estimate the reliability of audit tests. FFT-256 1.0 Garland, Harry $10 displays Fourier spectrum of your data or waveform. You can input your data graphically, as a mathematical formula, or from a disk file. It performs 256 point FFT. This is ideal for scientific/engineering data analysis. Requires EGA or VGA. F(x) 1.0 Crowther, Kenneth $10 plots a graph of a function y= f(x) and allows you to manipulate it in an adjustable and easy way. Functions include sin, cos, tan, atn, rnd, int, exp, log, abs, and sqr. Requires CGA/EGA/VGA. Graphiti 1.03 (GRPHITI) Copy Con Incorporated $20 plots 2D, 3D, and polar math functions with the option of saving the output to a GIF file. RanList 1.0 Brown, Barry W. $0 creates randomization lists and offers a primitive form of interactive randomization. It features restricted and unrestricted randomization. Fixed or random balance points can be chosen when restricted randomization is used. -------------------------------- END OF SMALL PROGRAMS DISK #3339 -------------------------------- AnyAngle 2.66 Preston, Jim $20 #3856 (10-93 CD) finds answers to geometry problems involving triangles, and offers scale views and supplementary data to back up the numerical results. It includes an interactive scientific calculator with automatic memory of all triangle components. The calculator also has major functions such as powers, roots, logarithms and trigonometry as well as degree-minute-second and degrees-to-radians conversion operations. You can change a solved triangle's angles or sides, or sizing it to have a certain area, altitude or other component or to fit exactly around or inside a given circle. You can also get a complete analysis including area, perimeter, altitude, center of gravity, coordinates of each vertex, and data about the inscribed circle and circumcircle. A Statistical Package 2.0 DMC Software, Inc. ASP $55-$85 #3028 is a powerful statistical package for business, economics, and the social sciences. It features complete data management and comprehensive statistical routines such as analysis of variance and random block with unequal samples; 13 probability distributions; four time series routines; 18 hypothesis/ nonparametic tests; box and whisker, scatter, and stem and leaf plots; contingency table analysis; ordinary least squares, two stage least squares, weighted least squares, stepwise, and auto regression programs, 29 summary statistics; frequency distributions; and a set of non statistical programs for solving linear equations and linear programing problems, inverting a matrix, and for depreciation and interest rate analysis. Other features include the ability to display a breakdown of scatter plots by a third variable; of one variable in the data matrix by another; combining of a set of variables in the data matrix into a single variable; twelve row transformations on the data matrix; and sin, cos, and ten trigonometric transformations. Graphmatica 3.2 kSoft, Inc. $20 #4112 (10-93 CD) is an interactive algebraic equation grapher used to plot mathematical curves. It supports several styles of graphing, including regular Cartesian, polar, parametric, slope-field, and initial-value approximations. Other advanced features include remembering the last 25 equations graphed, several ways to scale or size the grid, and the ability to save lists of equations and the current settings for later use. Algebraic Manipulation Program Cerebral Software $50 #27248/1888 [2 disks] is a symbolic calculation tool for students, teachers, and professionals in engineering or mathematical sciences. You can edit and simplify many expressions or equations in a mathematical derivation quickly and accurately. AMP functions in an interpreter mode and program mode. In the interpreter mode you may manipulate up to 128 expressions, equations or inequalities. In the program mode you have access to a combination screen editor and compiler so that you may define procedures using the same type statements that you use in the interpreter mode. AMP facilitates tensor manipulation using index notation. Tensor elements may be simple numbers, complex expressions or relations. Tensor manipulation can include matrix multiplication. Expressions and equations may be saved to the disk and then later recalled. Required are a hard disk and 640k RAM. BigCalc McClendon, Judson D. $20 #27383/1420 is a calculator that handles huge numbers. Prior versions were on Small Programs disks, but with the constant updating and the C source code, it is now over 300k. LS-1.00 Plus Scientific Calculator Lawrence Stone Research Group $39 #27383/2738 is a TSR, scientific calculator. Features include three types of logarithms, trigometric functions, including inverse and hyperbolic functions, angle conversions, date and time math, fixed decimals to 15 significant digits, a full statistical package that includes an array that will accept 500 numbers, three types of random numbers standard deviation, permutations, arithmetic means, quadratic means, harmonic means, geometric means, factorials, exponential functions, combinations, and more. PC-Calculator Schoenbrun, Mitchell $30 #27383/0264 is a resident calculator. It features 16 visible memories, 7 function key modes, and 14 number display formats. Mouse support and a pop-up version of the calculator have also been included. (Note: the MANUAL file apparently is formatted for printing and may not look exactly right when viewed on-screen.) Programmer's Calculator Moak, Ronald $15 #27383/265 displays on screen the four stack registers, six memory registers and a display register; thereby making it unnecessary to write down the contents of the registers when making complex calculations. In addition to the general functions found on most calculators the Programmer's Calculator has six logical functions (and, or, not, etc.). Numbers used in the general calculations may be up to 16 digits in accuracy. It converts numbers between decimal, hexadecimal, binary, and octal. Numbers up to 20 bits binary may be converted and the two's complement may be calculated on numbers up to 15 bits in length. Tex Solver-10 #27383/268 is not a simple tenkey-type calculator program, it emulates the HP calculators and is aimed at the scientific/mathematical crowd. Curvefit 3.3 Cox, T. S. $10 #27384/539 (10-93 CD) fits the values of X and Y to 25 different equations. Equation coefficients, Correlation Coefficient, and Best Fit are computed. For any of the 25 equations, predictions for Y can be calculated. Finance emulates the functions of the HP-41 programmable calculator. A user writes: "This program does no graphing whatsoever nor Power X, Y Fitting. Both of these were expected, based on the name and the description." DataPlot ComPlus Professional Services $68 #27384/1242 is a general purpose two dimensional data plotting system specially designed for scientific and engineering applications. Its simple menu driven user interface allows quick and effective method for scientific data analysis and presentation, and yet powerful enough to produce publication quality graphs. Graph types include linear plots and single/multiple cycle log plots using scatter, continuous, step or needle graphs. It supports CGA, EGA and Hercules compatible video cards and HPGL compatible plotters. It will also support an MS compatible mouse and a math coprocessor. Mathplot 3.2 [MATHPLOT] McCrary, J. H. ASP $20 #27384/1852 (09-93 CD) is a set of graphics programs to help scientists and engineers analyze data. Routines are included for least-squares fitting of polynomials to sets of data points, solving simultaneous linear equations, numerically integrating a curve defined by a set of data points, calculating simple statistical parameters for data sets, and for calculating the coefficients of a Fourier series for a periodic function described by a set of data points. Programs are also included for calculating and plotting Fourier spectra and Bessel functions, for plotting data sets and for plotting and comparing user-specified functions with data sets. Most of these functions can be plotted on screen with any graphics card or printed on Epson compatible printers. Sample data files are included for each function for easy testing of the program. The program is menu-driven and well designed (eg: it shows you file names when asking for a file to load). Screen Plot Hood, William G. $20 #27384/1826 will plot x-y data on the screen or Epson-compatible printer. Up to 200 different sets of data can be on the same plot. The program will draw a smooth curve through the data points as well as straight lines. It will make an exponential curve fit as well as a polynomial curve fit. It allows legends to be placed on the plot and the legends can be saved and later redrawn. It can also make 3-dimensional plots. Supports a Mouse, error bars, dual vertical axes, and mathematical operations. Also included on this disk is: HPlot (HP Plot) will plot two and three dimensional data on a HPGL compatible plotter connected to a serial port (COM1 or COM2). PlotDump sets up a Terminate & Stay Resident routine that will dump a graphics image to an Epson compatible dot matrix printer when the keys Ctrl and PrtSc are pressed simultaneously. The program can dump Hercules graphics images, 640x200 (mode 6) monochrome CGA graphics images and 640x350 (mode 16) EGA graphics images in which all foreground colored objects are displayed against the background (color #0). With an EGA image, the background (color #0) is printed as white and all other colors are printed as black. KS Probability and Statistics 2.1 [KSPROB] 06-93 CD Hudson, Joseph $10 #27329/693 [2 disks] is a set of stats programs, including exploratory regression, crosstabs, Lilliefor's test for normality, histograms and text-mode scatter plots. Other features include a chart of probability distributions, a table summarizing the distributions, and KSPSIM, which simulates samples from probability distributions. Requires DOS 3.2 or later. ProTab Strausbaugh, Brad $20 #27329/1889 is a statistical calculator for fast quantitative analysis of small data sets. The tools available include single and paired distribution, ANOVA, correlation and regression, and crosstab analysis. The program has a nice looking interface, but it didn't respond well to input errors in our testing. Nevertheless, it seems to perform its calculations properly. Pwrstar Hernandez, Hank $10 #27329/1200 performs various kinds of numerical analysis of data including moving averages. It is has undergone a number of significant improvements including support for multiple graphics adaptors, numeric processor, improved graphics and graphical interpolation, and increased power of the least squares polynomial. It features graphics support for the CGA, EGA, VGA, Hercules, and other drivers supported by Turbo 4.0. Two versions are shipped: PwrStar.88 is the 8088/8086 executable file, PwrStar.87 is the 8087 executable file. Also included on this disk is ATMOSPHERE CALCULATOR, which performs most of the routine atmospheric calculations used in aviation and aeronautical engineering. This program has been invaluable during flight test program for calculating altitude, temperature, airspeed, dynamic pressure, and many more aeronautical type calculations. Private pilots have found it a very handy tool while flight planning. ECstat & Epistat #27386/262 are statistics programs with numerous functions built in. BASIC is required. LeastSquares Sozuer, Sami $15-$40 #27386/2737 is a general purpose data analysis program designed primarily for regression analysis linear in the parameters. The program also has a collection of data transform, graphics and statistics features to give the user a visual as well as an analytical understanding of the data at hand. (The author is no longer at the address provided in the documentation.) Linear Programming System & Regression.WKS #27386/263 is 160k template for 1-2-3. Mathpak III 2.0 Dalal, Dan $35 #27386/567 performs numerous math functions, including base conversion, quadratic equations, chain rule for f(x)=a(bx^c+dx^e+K)^n, polynomials, rolar/rectangular conversions, linear equations, mean and standard deviation, logarithms, trig, square root, testing for the intersection of two polynomial functions, solving for equations such as "f(x)=ax^3+bx^2+cx+d". This is a completely rewritten program and offers considerable speed and advantage over MathPak II. It has 80x87 support and context sensitive help screens. functions, solving for equations such as "f(x)=ax^3+bx^2+cx+d". Mathpak IV Dalal, Dan $13-20 #4762 is a fully interactive command line driven math package, where you enter the math function you will to work with. You can solve quadratic equations, statistical functions linear functions, Chain Rule functions, polynomial functions, Rectangular to Polar conversions, sine of an angle(in degrees), cosine of an angle(in degrees), the tangent of an angle(in degrees), and Fahrenheit to Celsius degree conversion. Included with the program is module that gives you the opportunity of watching the math problem being solved by the computer. You can also "fill in the blanks" where important concepts are being taught. Another module offers a review of basic concepts that are used by MATH PAK IV. A Windows version is also included on this disk. E.Q.Filer S.O.S. Engineering Software $50 #27385/856 is a menu-driven equation solver. It is oriented towards defining equations and saving them for later use, rather than entering equations on the fly. (For defining and solving equations on the fly, see "Homebase" and "Desk Commando" under "Utilities".) You give each equation a name and description. You can specify an allowable input range for each variable and the format (number of decimal places) of the result. Fifty dollars seems a trifle steep for this and we could live with out the longish introductory screen, but EQF is a well designed program. Mercury Schlafly, Roger ASP $49 #27385/2893 is a complete program for solving equations and plotting graphs. This program allows you to evaluate mathematical expressions; solve for the roots of an equation; solve a system of equations; maximize or minimize a function, with or without constraints; evaluate derivatives and definite integrals; plot one or more functions; and print a report or a graph. Requires 640K RAM, and a graphics monitor for plots. PFSA Stevens, Don $? #27385/540 was created to do some rather large but simple algebraic computations. PFSA does not have the large variety of commands which more general purpose symbolic algebra programs (muMath and Macsyma) have but it is faster and can work with bigger expressions. PfSA ran 90 times faster than Macsyma on a very large Hamiltonian canonical transformation project, and it runs more than 200 times faster than muMath when doing example E. MathTool Maher, Martin J. $20 #27387/1183 is an interactive mathematical program that performs the following functions on a user-defined variable: evaluation of the function for any value or range of values of the independent variable; evaluation of the derivative of the function for any value of the independent variable; numeric integration using Simpson's Rule; fast and powerful root finding; graphics using 640x200 resolution screen (CGA required). The program is menu based, with context sensitive help, and function definitions are limited only by memory. You can also do log-log and simi-log plots and use file input and output for function definitions. Also on this disk is Convert, a unit conversion utility that accepts two arguments from the command line, a number and a unit (e.g., 10 miles), and shows a list of equivalent quantities with different units. Turbo Pascal source comes with both programs. MultiVariate Statistical Package 2.1d [MVS21D] Kovach, Warren L. $105 #27387/2894 (12-93 CD) calculates principal components, principal coordinates, correspondence, and cluster analyses, as well as a variety of distance, similarity, and diversity indices. These are common multivariate statistical procedures used in many areas of biology and geology, as well as other fields. STAR Gino, Antonio, Ph.D. $69 #27387/1985 is a program providing Statistical Analysis for Researchers. It performs Regression, Variance & Covariance & Orthogonal Contrasts, an Dummy variables. The researcher can obtain true ANCOVA tables from regression. A tutorial has also been provided. This program will not operate on a two-floppy system. Stat-Sak Dallal, Gerard E. $0 #27387/641 performs the following calculations and analyses: distributions (normal, t, chi-square, F, binomial, poisson), tests of independence (Pearson chi-square with Yate's continuity correction), Fisher's exact test for 2x2 contingency tables, Mantel-Haenszel test, McNemar's test, Correlation coefficients, Bartholomew's tests for increasing proportions and for increasing normal means, one-sample t test, and the well-known two-sample t test from summary statistics - a personal favorite of mine. O.C.T.A. Dallah,Gerard E. $10 #27388/2827 is a program for the log-linear analysis of multi-dimensional contingency tables by use of the Deming-Stephan iterative proportional fitting procedure. The program can now read tables from ASCII files. Oddjob 6.0 (on the same disk) offers statistical procedures, including test of normality, the Hartigans' DIP test of unimodality, isotone regression, two-phase regression, structural relations, alternating conditional expectations, locally weighted scatterplot smoother, and a test of equality of two dependent correlation coefficients. Works directly with SYSMAT/MYSTAT system files. Q-Pro Q-Soft (Brighton) Ltd. $60 #27388/2066 uses Monte-Carlo methods to derive the probability distribution of a user defined function which can contain two independent random variables. The program is easy to use; it has full-screen editing and context-sensitive help screens. Results are displayed in both tabular and graphics form on either CGA-compatible or mono-graphics video. Simon Toth, A., Karolyi, K., and Faludi, E. $40-$99 #27388/2649 is a good program for mathematical modelling and continuous simulation of any models that can be defined by ordinary differential equations. In other words, it can process any models which are defined by ordinary differential equations. This program is recommend to anybody who deals with problems that can be formulated as a system of differential equations: physicists, engineers, economists, biologists, etc. Math Extra Denker, David $30 #3672 is a general purpose, programmable scientific math program for everyday use. Features include graphics; variables; string memories; a conversion utility with over 500 metric and English weights, volume, area and measurement conversions; a savings and finance application file that loads an application menu into the environment and a slot machine game. You can also add utilities to the program. Math Extra Resident 2.12 ($20), a limited TSR version, is included. The graphics mode does not support the Hercules graphic cards. It may not work with some video cards in display modes other than the standard 80 columns by 25 lines. MathPlot 3.2 Sherrod, Phillip H. ASP $15-$20 #3327 (formerly FunPlot) allows you to enter functions using ordinary algebraic notation and immediately plot them. It supports Cartesian, polar, and parametric functions. Up to four functions may be displayed simultaneously. [Matrix] Kennedy, John $0 #12470 (09-93 CD) is designed to teach row operations on matrices. It can be used to find complete solutions to systems of linear equations, to find determinants and inverses of matrices, to solve standard and non-standard Linear Programming problems, and more. MrqFIT Spring Systems $39 #3947 solves non-linear parameter estimation problems. It is easy to use, interactive, and powerful. NonLin 2.5 Sherrod, Phillip H. ASP $25 #4031 (10-93 CD) fits linear, multivariate, polynomial, and general nonlinear equation to data. You specify the form of the function whose parameters are being estimated using ordinary algebraic notation. The program can be directed to generate an output file with predicted values and residuals in addition to determining the parameter estimates. Observed values and the estimated function may be plotted. QA Training Tools Softrx Shareware ASP $0-$25 #20037/3054 [6 disks] is a very extensive set of sophisticated statistical programs for quality assurance and quality control. EWMASIM generates interactive CGA-graphical displays of Average Run Lengths for Exponentially Weighted Moving Average schemes. SDValid automates testing, using results from the customer's independent resample, of whether supplier provided inspection results are free of downward bias. Six Sigma Simulator displays histograms of pseudo-random, normal deviates with mean zero and variance one. Audit helps set upper confidence limits on the unknown, true nonconformance rates in populations that have been audited via random sampling. PCStat 2.5 PC Information Systems ASP $45 #3328 is a descriptive statistical report program providing statistics and histograms for two related data sets. It features pull-down menus and context sensitive help, and can accept data from Lotus, ASCII, DIF, and dBase. Requires 640k RAM, 500k disk space. Simstat 2.1c [SIMSTAT] Peladeau, Normand $60 #20145/4113 [2 disks] is a menu driven statistical program that provides many basic descriptive and comparative statistics. Features include Summary statistics, Crosstabulation, Frequencies analysis, Breakdown analysis, Oneway analysis of variance, Paired and independent sample t-tests, Pearson correlations, and Regression analysis. Other features include graphic pie charts, box-and-whiskers plot, multiple box-and-whiskers plot, multiple responses analysis, time series analysis, scheffe post hoc test, standardized residuals scatterplot, multiple regression analysis, binomial test, one sample chi-square test, runs test, friedman two way anova, kolmogorov-smirnov test for 1 samples, histogram (text of graphics), full analysis bootstrap simulation, integer weighting of cases using another variable, direct access to 4 user defined external data editors for Lotus, dBase, ASCII, AND SPSS/PC+, ability to assign missing value and variable label to any variable or to change the variable length and number of decimal used to display results, and simedit spreadsheet data editor. Also included is SIM2NL 1.0 [SIM2NL] integrates Nonlin 2.3 into Simstat. Smedley's ... Calculator [GPCALC] Smedley's Software House $30 #12608 (11-93 CD) Smedley's General Purpose Scientific Calculator is an engineering/scientific calculator with an attractive graphical interface. It will record and save operations to disk. SPC EXpert 2.0s Quality Software Designs, Inc. $40 #20166 [2 disks] automates the statistical and graphical tools used in statistical process control, total quality management and other process improvement techniques. It constructs, analyzes and interprets eight types of control charts, both attributes and variables. It constructs bar graphs, pie charts, Pareto diagrams, histograms, frequency polygons, and Ogives. It also constructs and analyzes scatter diagrams. Hard disk required. Stat and Math Turbo Pascal 5.X Libraries Norton Associates $35 #2650 contains 30 elementary statistical and 19 mathematical subprograms, and provides a suite of statistical routines for scientific application development. The Math Unit and Pascal intrinsic function provide total capability of Fortran-77 intrinsic math functions, except for complex math. StatHelp Hawkeye Softworks ASP $20 #4283 is a set of statistical related programs. WatStat tells you which statistical procedure to use, based on the data, design, and analytical focus that you specify. LookUp performs five tests: z, t, F, Chi-Square and Binomial. Rando generates several types of random numbers for sampling, simulations, etc. Statistical Analysis Johnson, Paul $28 #4867 is a set of programs for calculating a variety of statistics. This package provides routines for normal probabilities, descriptive statistics for key-entered data and a retrieved data file, 3rd and 4th standardized moments, sample skewness (measures symmetry), kurtosis (measures heaviness of tails), generating uniform random numbers and standard normal random variables, sorting data into ascending order, assigning integer ranks, bessel function, binomial probabilities, correlation coefficient between two variables, linear regression, Boxcox transformation to normality, sample size determination, regression, difference and ratio estimation, and more. Survey Power 2.0 Wisco Computing ASP $42 #4032 is designed to create, analyze, and print out results to surveys, questionnaires, and opinion polls. You can create surveys with single choice, multiple choice, rank order, and numeric questions. Survey Power can perform complete demographic and correlation analyses of all responses. Any analysis can be printed or saved to disk as an ASCII file. SurvWare Compstat Software $50 #2308 is designed for tabulating and analyzing opinion surveys with up to 50 multiple-choice questions with up to 10 possible responses for each. Up to 10 of the questions can be used to analyze the survey based on demographic groupings. The user interface is not very slick nor easy to follow the first time through, but the program seems to perform its intended function as advertised. The number of questionnaires the program can analyze is limited only by the amount of disk space available from where the program was started. Requires 384k and CGA compatible video. TOUR Jarvis, Jonathan $? #27601/3902 [3 disks] will help find the most efficient route for a salesman who must visit a number of locations, each of them only once, and then return home. The program is so flexible and powerful that it can solve the Knight's Tour (a chess puzzle in which the Knight must legally move to every square on the board once and only once). A Fuzzy Links option creates sets of cities within a fuzzy tolerance distance from line segments of a long chain. An overlay program is provided, as well as on-line help. 2 meg of free hard disk space is required. The Thinker Elliott, Alan C. $25 #27389/1379 is a spreadsheet program similar in command structure to 1-2-3, but limited to 26 columns and 125 rows. It allows you to enter numbers and text on the screen, and define mathematical relationships between the numbers. Once these relationships are defined, you may change some numbers, and the program will automatically recalculate the related numbers. It can be used for financial modeling, budget calculations, scientific calculations, and more. Vision Freeware Vision Information Services $0 #27389/2067 is a set of programs that do various math functions: convert decimals to fractions; generates the factorial of a number; factors a number or declares it a prime; gives all prime factors of a factorial; gives Greatest Common Divisor of two numbers; reduces fractions. An 80*87 is supported but not required. XY 1.3b Klein, Jack B. $25 #27389/269 does curve fitting, plots points on the screen or printer. 8087 version is also available. XYPlot Arnold, David $25 #27389/1744 may be used as a stand-alone program to display fully calibrated XY graphs of data from any source that can generate data files in the "fixed length record" format, such as database programs, accounting programs, sequential files generated in BASIC, etc. Data may also be input manually. The maximum number of data points is 1500. XYPlot is a useful tool for engineering, sales, marketing, etc. applications. The display resolution is 640x350 on EGA, 640x200 on CGA. VeCalc Fraundorf, P. $0 #3183 is a calculator for work with one-dimensional vectors, profiles or spectra rather than with numbers. It uses a visible four level stack, hierarchical pop-down menus, and four memories to buffer input and output of profiles from ASCII files on disk. The stack paradigm allows tools from statistics, image and Fourier analysis, calculus and DifEq, and physics analysis. WL Plot 2.31 [WLPLT231] Loewer, Wesley B. $25 #12471 (09-93 CD) plots Algebraic or RPN functions in cartesian, parametric, and polar modes with linear or log scales. It graphs rotated conic sections, integrals, 1st and 2nd derivatives, non-function relations, bifurcations, recursive relations and best fit curves. ZGRAPH for DOS 7.0 Jakob, John $10 #4575 allows you to create, display, and print X/Y, Polar, Log, Bar, Pie, and Area graphs. The program will also graph 2-D functions/expressions. (The Windows version of this program is on disk #4457.) ]]]]]