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1996-09-30
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This is !Statistix, version 1.3 (29 September 1996)
Intro
=========
This program performs limited statistical analysis of data.
It can contain two data banks only.
It performs the following tasks.
1. Descriptive, data is available, about these two data sets.
2. A significance difference test can be performed on the two sets.
3. The first of these two sets can be analysed to find its' frequency
distribution, and the resulting data can be saved as a CSV file , or
displayed as a histogram, which can also be displayed as a drawfile.
Starting
=========
Double clicking on the icon bar or dragging a suitable
CSV file to it opens the main window.
Four methods are available for data input, being accessed from the four
large slab icons towards the top of the windows.
1. Dragging in CSV or suitable text files.
2. Data can be entered from the keyboard.
3. Random numbers can be generated from the program
4. Random numbers, being bunched nearest to their mean can be generated.
Having entered at least one set of data by one of the above means, a window
opens for each set of data. The program won't allow you to load more than
two files.
The data windows, each have a menu that allows you to perform the
statistical operations on them. You can also save the files in CSV format.
Significance Difference Tests
==============================
These can only
be performed when each of the data banks is occupied. The tests are suitable
for comparing small data sets. A window displays the confidence limits that
the sets show differences.
Paramaters
==========
Descriptive variables such as mean and standard
deviation are displayed.
Frequency Distribution
======================
This can only be performed on
data set 1. The program works out some sensible limits for the sets it is
counting. These can be overidden, from the Frequency Distribution Window,
but you will not be able to choose limits that give more than 20 divisions.
Uses
=====
There is a good set of statistics packages on RiscOS, and this
one is limited. The components were originally conceived on the Beeb for use
in school. The significance tests were for comparing small sets of data.
This included studying areas of different facing walls for lichen cover.
The histograms were used to enter such measurements as the height of pupils.
Disclaimer
==========
I cannot in any way guarantee the accuracy of the
routines here. I would be happy to hear from any one finding problems, and I
may even be able to include other statistical routines if anyone asks for
them.
Credits
========
Please read about the highly recommended resource, EvntShell. This can be
located by double clicking over the !Statistix icon in a filer window,
while pressing the < shift > button.
Copyright
=========
This program is Public Domain. It may be distributed or
copied freely as long as no part of this software may is used in any other
program, whether commercial or public domain,without my prior written
consent, though any files created by this software are not bound by this
condition. This software may not be distributed for a profit, save that
required to cover packaging and media costs..
Copyright (©) is retained by the author, who may be contacted at the address
beneath. No liability can be accepted by the author for any loss or damage
arising from use or misuse of this software.
-----------------------------------------------------------------------------
Any improvements or bugs, please report to :-
Robert Seago.
40 Alton Park Road
Clacton On Sea Essex.
CO15 1ED