ProfitPress Mega CDROM2 …eeware (MSDOS)(1992)(Eng)/ProfitPress-MegaCDROM2.B6I/APPS/STATISTI/TS3ST16.ZIP/STATTRAN.INF

Text File | 1990-12-23 | 10.2 KB | 216 lines

                           - 1 -
23rd December, 1990

About TS3ST in General  (Statistics: Transformations of observations)
======================

Apply question mark ? with the program call for a brief description of a
program.

This package may be used and distributed freely for NON-COMMERCIAL,
NON-INSTITUTIONAL, PRIVATE purposes, provided it is not changed in any way.
┌────────────────────────────────────────────────────────────────────────────┐
│ For ANY other usage (such as use in a business enterprise or a university) │
│ or the full scale version contact the author for a personal or a site      │
│ license.                                                                   │
└────────────────────────────────────────────────────────────────────────────┘
Please do not distribute any part of this package separately. Uploading to
BBSes is encouraged.

The registered version is strictly for the registrant only. Identical
programs must NOT be running on more than one computer at a time. Site
licensed programs must not be run outside the licensed site.

The programs are under development. Comments and contacts are solicited. If
you have any questions, please do not hesitate to use electronic mail for
communication.
InterNet address: [e-mail]         (preferred)
Funet address:    GADO::SALMI
Bitnet address:   SALMI@FINFUN
FidoNet address:  2:515/1 (Micro Maniacs Opus, To: Timo Salmi)

The author shall not be liable to the user for any direct, indirect or
consequential loss arising from the use of, or inability to use, any program
or file howsoever caused. No warranty is given that the programs will work
under all circumstances.

Timo Salmi
Professor of Accounting and Business Finance
School of Business Studies, University of Vaasa
P.O. BOX 297, SF-65101 Vaasa, Finland

EX2FL.EXE copyright (c) is by Programmer Tuomas Eerola
School of Business Studies, University of Vaasa
P.O. BOX 297, SF-65101 Vaasa, Finland

CONTENTS:

  1. General Description of STATTRAN.EXE
  2. Use as an Editor
  3. Exponential to floating converter EX2FL.EXE
  4. Release Notes for STATTRAN.EXE
  5. PD Programs for PC Compatibles by Timo Salmi
  6. The Statistics Set for Other Computers

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1. GENERAL DESCRIPTION

STATTRAN (Ver 1.5)

   STATistics: TRANsformations is part of the interactive statistical system
by Timo Salmi. It is the third program in the set. It can be used for
transforming the observations, and, if necessary, even as an editor. The
first program in the set is STATistical MEASures (TS1STxx.ARC), which is
intended for univariate analysis. The second program in the set is
STATistics: multiple REGRession analysis (TS2STxx.ARC). The fourth program in
the set is STATistics: Ranks and CORrelations (STATRCOR in TS4STxx.ARC). The
fifth program in the set is STATistics: Least Absolute Deviation multiple
Regression (STATLADR in TS5STxx.ARC).
   STATTRAN includes a built-in help system, which can be invoked by typing ?
at any interactive question. Because of this built-in help, and the
interactive nature of the program's user interface, no long-winding
instructions have been included. (Who reads instructions anyhow?)
   The following transformations are available
    LOGAE is ln(x(i)),       i.e. takes the natural logarithm.
    LOGAR is log(x(i)),      i.e. takes the logarithm in a given base.
    POWER is x(i)^a,         i.e. raises to the given power.
    SCALE is a*x(i),         i.e. scaling with a constant coefficient.
    MULTI is y(i)*x(i),      i.e. multiplies a variable with another variable.
    DEFLA is y(n)/y(i)*x(i), i.e. deflates a variable with another variable.
    DIFFE is x(i)-x(i-1),    i.e. takes differences.
    LAGLD is x(i+lag),       i.e. a lag or a lead.
  The data can either be given from the keyboard or taken from a file. If the
input is to be taken from a file it must first be prepared with some editor,
or some word processor which includes an option for preparing ordinary ascii
text. (Also STATTRAN can be used for this purpose.)
   The data is given to the program in the following format:

       X1 X2 X3                    !variable names (! denotes a comment)
       3.56 6.32 -1.73
       5.12 -4.21 9.18
       14.2 5.11 0.31
       END                         !END is optional in a file

A missing item in an observation is marked by a hash (#). E.g. if the first
item of the second observation were missing, the observation should be
written as  # -4.21 9.18
   The items in an observation can be separated with blanks, as in the above,
or with commas (,) e.g. 5.12,-4.21,9.18. The number of the intervening
blanks is irrelevant, and can be customized for increased readability. Thus
e.g. 5.12 -4.21 9.18 and    5.12    -4.21     9.18    are equivalent.
   A row can be continued using an ampersand (&). E.g. the variables could
be given as
       X1 X2 &
       X3
Alternatively, * can be used instead of & as the continuation marker.
   Comments can be added to the input data. If ! appears on a line all text
after ! will be considered as a comment.
   A header can be entered on each page if output is directed to a file.
To accomplish this start the very first line on the input file with a
double exclamation mark (!!) and the rest of the line will be used as the
header. Thus !! indicates a header, a single ! an ordinary comment. Note
that STATTRAN will omit all comments.
   The maximum number of variables is 25. The maximum number of observations
is 400 (for each variable). The public domain version, however, sets the
limits at 4 and 100 respectively.


2. USE AS AN EDITOR

   STATTRAN can be used as a simple editor to prepare the data for the other
statistics programs in the set. (Naturally, any editor will do.) The way to
do this is to select the suitable options in STATTRAN as they come along:
Choose giving the input from the keyboard (that is, not from a file), and
directing the output to a file. Then select from the menu of transformations
and actions the action SAVE. The data you have entered will be saved in your
indicated output file in the proper format. If you wish to, you can, of
course, also make transformations in the data during the same session.
   An experienced user may also find useful the programs FILETRIM and FILEADD
in TSFCOMxx.ARC. The former can be used to extract columns from data files,
and the latter to join them (side by side) into a new data file.


3. EXPONENTIAL TO FLOATING CONVERTER EX2FL.EXE (by Tuomas Eerola)

The programs in the statistics set do not allow the input data to be in
the exponential format (such as e.g. 1.2345E+05). Such data must first be
converted into the floating format (e.g 123450.0).

Usage: EX2FL Source.ext [Output.ext]

EX2FL.EXE converts a file containing exponent-type numbers to floating-point
numbers. Default output is con, that is to screen.

Value range: 1E-15 ... 9.999E16


4. RELEASE NOTES FOR STATTRAN.EXE

   Version 1.1: Some internal changes.

   Version 1.2: Some of the routines of the Turbo Pascal code have been
optimized for increased speed.

   Version 1.3:  This version introduces input recall and line editing. The
special keys Del, CrLf, CrRg, CrUp, Home, End, and Esc are functional for
this purpose. PgUp is the recall key. Line editing uses insert mode.
 Disk access has been made faster (the program has its own cache).
 The directory routine has been updated.
 Read-only files can be read properly.

   Version 1.4: While fixing a bug in the multiple regression program I also
made some enhancements in the routines which are common to all my statistical
programs. Most importantly the insert key has been made functional in the
line editing.

   Version 1.5: The line editing potential of the program has been improved.
When the task is given from the keyboard, and continuation lines are used,
the repeated input recall (CursorUp) gets each line in turn. Ctlr-C and
break-key abort have been enhanced.
 A line can be continued using an &, or a * at the end. Now also the
backslash \ is accepted.  This was suggested by Tuomas Eerola.
 Some help texts within the program have been extended.

   Version 1.6: Several improvements to the nuts and bolts of the user
interface.
   The new usage of the call is
PROGNAME [/h(elp)] [/iInputFileName] [/oOutputFileName] [/cColumnsPerRow]
(the /c option, which regulates the width of the output, is for registered
versions, only). If you use the /i switch, it stuffs the InputFileName into
the appropriate recall buffer. This means that when the program asks you for
the input file name, you can invoke the input file name just by pressing the
CursorUp key. (The same goes for the /o switch, respectively.) This is very
convenient, if you use the program many times successively making small
changes in your data in between. (This assumes, of course, that you have a
command line editor like DOSEDIT or CED to recall previous MsDos commands.
These common shareware programs can be obtained from any well-stocked BBS or
FTP site.)
   The printer readiness test has been rewritten to be more general. The
earlier test failed for some printers, because the codes the printers send
when they are offline are not standardized.
   The "file exists, overwrite?" question is no more asked when the output
file is prn, in other words when the output is directed to the printer.
   The user has now a choice of a left margin from 0 to 20 blanks when output
is directed to the printer.
   The user has now a choice between formfeed and four blank lines to start
each new page of output.
   When an input file is not found, the user is given the choice of listing a
directory. The directory routine has been rewritten.
   The file ready message now also includes the file side besides the name.


5. PD PROGRAMS FOR PC COMPATIBLES BY THE AUTHOR

See TSPROG.INF in ST1STxx.ARC or in ST2STxx.ARC.


6. THE STATISTICS SET FOR OTHER COMPUTERS

   The Statistical programs by Timo Salmi are also available for the Sinclair
QL computer. Named STATPREP the system is part of a Public Domain library for
QUANTA members. The descriptions of the files in the Quanta Library are given
in STATMEAS.INF contained in TS1STxx:ARC, i.e. the first part of the set
statistical programs.