PC World Komputer 1997 February

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Asc2Com (MorganSoft) | 1994-05-02 | 17.3 KB | 361 lines

Introduction to KURV+ for WINDOWS (C) Copyright 1992-94 by Conrad Button's Software TABLE OF CONTENTS SUBJECT PAGE NUMBER ______________________________________________________________ Installation .......................................... 2 Introduction .......................................... 3 Getting Started ....................................... 7 Copyright and Registration............................. 12 Limited Warranty ...................................... 14 Problems with INSTALL ................................. 15 To print this file, press <Alt><H> Page 2 INSTALLATION Your diskette contains an INSTALL kit which will automatically install all of the files and libraries on your hard drive. To install KURV+ for WINDOWS 1. From DOS, change drive\directory to the one that contains the KURV+ files. 2. Type and Enter INSTALL. INSTALL will then run. It will prompt you for the letter of the drive on which KURV+ is to be installed. The INSTALL program will then copy the files on the diskette to their appropriate directories. To install a KURV+ icon on your Windows Desktop: 1. Start Windows 2. Open the Windows Program Manager and select the FILE menu. 3. Select NEW. 4. Select PROJECT ITEM, then select OK. 5. For DESCRIPTION, type KURV+. 6. For COMMAND LINE, type drive:\KURVWIN\KURV4.EXE (e.g. C:\KURVWIN\KURV4.EXE). 7. Select OK. The KURV+ icon will then appear on your Windows Desktop. Page 3 INTRODUCTION KURV+ has four mathematical modules: a Curve Fitting module, a Multiple Linear Regression module, a Fundamental Statistics module, and a Graph Builder module. CURVE FITTING MODULE X,Y data points supplied by the user are processed to determine the coefficients for 28 mathematical equations (including third, fourth and fifth order polynomials). A built-in data editor allows the user to create, edit, or import files for curve fitting. Changes to files, and the resulting curve fit changes, can be rapidly made from KURV's master control panel. Comparisons of calculated points with actual data points are instantly available. The user can also forecast results for points beyond the range of the input data. The comparisons and forecasts can be displayed as graphs or as tables. All graphs and tables can be printed via the Windows printer interface; they can also be copied to the Windows clipboard for insertion into other Windows programs. The default labels and legends on the graphs can be changed via the new label editor on each graph's menu bar. Press [PgDn] Page 4 MULTIPLE LINEAR REGRESSION In multiple regression, the dependent variable (Y) is predicted in terms of 2 or more independent variables or predictors (X1, X2, etc.). KURV+ will calculate the least-squares coefficients for linear regression with two, three, or four predictors. The general form of the equation is: Y = b0 + b1*X1 + b2*X2 + b3*X3 + b4*X4 where Y is the dependent variable, X1, X2, X3, X4 are the independent predicators, and b0, b1, b2, b3, b4 are the coefficients to be calculated. For example: You have priced ready-to-ship 486DX2-66 computers from two companies. All else being equal, you have determined the cost as a function of MB of RAM and of MB of hard disk storage. Press [PgDn] Page 5 Company MB of RAM MB of hard disk Total computer cost ($) ------- --------- --------------- ----------------------- ALPHA 16 528 3250 8 426 2750 4 214 2450 BETA 16 426 2995 8 340 2495 4 120 2295 You have decided to order a customized 486DX2-66 with 4 MB of RAM and 528 MB of hard disk. What is the expected cost? The multiple regression module in KURV+ will quickly provide the answer-- COST = $1996 + $37.5 * MB of RAM + $1.05 * MB of hard disk. Thus your customized configuration should cost approximately $2700. Similar to the curve fitting module, the multiple regression model will also allow you to forecast results beyond the range of the input data. All forecasts can be displayed as graphs and/or as tables. Press [PgDn] Page 6 FUNDAMENTAL STATISTICS MODULE This module calculates the mean, variance, and standard deviation of data sets supplied by the user. Data may either be grouped (item value, frequency of occurrence) or ungrouped (single column of item values). Grouped data may be displayed as a scatter graph. GRAPH BUILDER MODULE This module allows you to create your own graphs, independent of the other modules. You supply the data and then choose your graph style, colors, font style, line style, and grid type. You enter the desired graph title, legend, and axis labels. The resulting graph may be printed directly or copied to the Windows clipboard. Page 7 GETTING STARTED Start the Windows Program Manager. Double click on the KURV+ Icon. The opening window will display the module selection panel. Chose either the Curve Fitting, the Multiple Regression, the Fundamental Statistics, or the Graph Builder module. CURVE FITTING MODULE If you select the Curve Fitting module, its Main Control Panel will be displayed. From here you can enter or import the numerical data to be curve fitted, determine the coefficients, and compare or forecast calculated values. Your first step is to enter or import the X,Y points to be curve fitted. This is done via the data display/editor on the left side of the Master Control Panel. The HELP menu should be read before you attempt to use this editor. Please note that the maximum number of data pairs that can be processed by KURV+ is 500. Press [PgDn] Page 8 Your second step is to curve fit the displayed data. Select either the button labeled FIT TO 25 CURVES or the button labeled FIT TO 3 POLYNOMIALS. The HELP menu will provide additional details. Once the calculations have been performed, you can print the coefficients. You can also COMPARE the calculated results with your inputs. You can FORECAST Y values for X values between your data input points (interpolate) or beyond your last data point (extrapolate). Refer to the HELP menu for more information. MULTIPLE REGRESSION MODULE If you select the Multiple Regression module, its Main Control Panel will be displayed. From here you can enter or import the numerical data to be analyzed, determine the linear coefficients, and forecast calculated values. Press [PgDn] Page 9 Your first step is to enter or import the X1, X2 (X3, X4 optional) and Y data points. This is done via the data display/editor on the left of the Master Control Panel. The HELP menu should be read before you attempt to use this editor. Please note that the maximum number of data rows that can be processed by KURV+ is 500. Your second step is to process the displayed data. Select the button labeled PROCESS DATA. The linear regression equation will be displayed in the white text box on the bottom of the panel. Once the calculations have been performed, you can forecast Y values for X1, X2, etc. values between your data input points (interpolate) or beyond your last data point (extrapolate). To forecast, select the FORECAST button. A new control panel will appear. Select either X1, X2 X3 or X4 for the variable predictor, enter the values for the remaining predictors, then enter the minimum and the maximum values for the variable predictor. Select either the tabular or the graphical display button. Press [PgDn] Page 10 FUNDAMENTAL STATISTICS MODULE When you select the Fundamental Statistics module, a Main Control Panel will appear. From it you can enter or import data values to be analyzed and calculate their mean, variance, and standard deviation. You can also display/print a scatter graph of grouped data values. First you must enter or import your data values using the data/display editor on the left side of the panel. The HELP menu should be read before you attempt to use this editor. Please note that the maximum number of data rows that can be processed by KURV+ is 500. If your data is grouped by item value and frequency of occurence, select "Grouped" from the option box in the upper right corner of the panel, otherwise select "UnGrouped" data (ungrouped data is a single column of values). Then select the "Process Data" button. The mean, variance, and standard deviation of your data will then be calculated and displayed. To view a scatter graph of your data, select the "Scatter Graph" button. Press [PgDn] Page 11 GRAPH BUILDER MODULE To create your own graphs, you must first enter (or import) your X,Y data in the data display/editor. Then either select a graph type, color, font, line, and grid from the menu bar or accept the defaults (black line graph on white, Roman font, thin line, no grid, no Mean). If desired, you can also enter a graph title, legend text, X-axis text, and Y-axis text. Then select the "Display Graph" button. Your graph will be generated in the large white region on your screen. Changes can be instantly made and viewed by selecting alternate options from the menu bar. To print your graph, select "File" and then "Print". To copy your graph to the clipboard, select "Edit" and then "Copy". Please refer to the HELP menu for addtional information. Page 12 COPYRIGHT and REGISTRATION KURV+ for WINDOWS is (C) Copyright 1992-94 by Conrad Button's Software. If you are not a registered user, a registration fee of $18.00 (U.S. funds) should be sent to: Conrad Button's Software 13807 S.E. 282 Street Kent, WA 98042 You will receive a personalized copy of the registered version. Please use the form on the next page when registering. A HIGH DENSITY drive is required; please state whether a 5.25" or 3.5" diskette is desired. *** Site Licenses are available, please contact us for details. *** Press [PgDn] To: Conrad Button's Software 13807 S.E. 282 St. Kent, Wa 98042 Please register me as a user of KURV+ for WINDOWS. Send me the latest REGISTERED version and notify me of future upgrades (which I will be able to purchase at a discount). I enclose payment of $18.00 (U.S. Funds). KURV+ requires a HIGH DENSITY floppy drive (1.2 or 1.44 MB). Please select: [_] 5.25" [_] 3.5" diskette. Name ___________________________________________________ Address ___________________________________________________ ___________________________________________________ ___________________________________________________ I received the ShareWare version of KURV+ for WINDOWS from: Name of Distributor ________________________________________ Press <Print Scrn> to print this form. Page 14 ******* LIMITED WARRANTY ******* Conrad Button's Software disclaims all warranties, either express or implied, including, but not limited to implied warranties of merchantability, fitness for a particular purpose, and accuracy of calculated outputs, with respect to the product. Should the program prove defective, the purchaser assumes the risk of paying the entire cost of all necessary servicing, repair, or correction and any incidental or consequential damages. In no event will Conrad Button's Software be liable for any damages whatsoever (including without limitation damages for loss of business profits, business interruption, loss of business information and the like) arising out of the use or the inability to use this product even if Conrad Button's Software has been advised of the possibility of such damages. Use of this product for any period of time constitutes your acceptance of this agreement and subjects you to its contents. Page 15 PROBLEMS WITH INSTALL If you are having problems copying files with INSTALL, do the following: 1. Make a KURVWIN directory on your hard drive (i.e., MD KURVWIN). 2. Change directory to KURVWIN (i.e., CD KURVWIN 3. Copy the README.COM and the EXPAND.EXE files from the source diskette to the new KURVWIN directory. 4. Insert Disk #1 (the disk that contains GRAPH.VB_) in floppy drive A (or B), then type and enter then following commands: 5. EXPAND A:\GRAPH.VB_ C:\KURVWIN\GRAPH.VBX (assuming A: contains Disk #1 AND C: contains the KURVWIN directory). 6. EXPAND A:\THREED.VB_ C:\KURVWIN\THREED.VBX 7. EXPAND A:\GSW.EX_ C:\KURVWIN\GSW.EXE 8. EXPAND A:\GSWDLL.DL_ C:\KURVWIN\GSWDLL.DLL 9. Insert Disk #2 (the disk that contains VBRUN200.DL_) in floppy drive A (or B), then type and enter the following commands: 10. EXPAND A:\VBRUN200.DL_ C:\KURVWIN\VBRUN200.DLL 11. EXPAND A:\KURV4.EX_ C:\KURVWIN\KURV4.EXE THIS WILL GET THE JOB DONE, SO HANG IN THERE! Refer to Page 2 for instructions on installing an icon in Windows.