README FILE FOR PCS RUNNING MSDOS
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GENERAL INFORMATION
This is file /pub/msdos/README that can be obtained by anonymous ftp to
odin.mda.uth.tmc.edu (129.106.3.17).
This disk contains one or more complete programs and documentation in
the form of compressed self executable files. The creation of these
files used software licenced from:
PKWARE
9025 N. Deerwood Drive
Brown Deer, WI 53223, USA
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FINDING AND EXTRACTING PROGRAMS
The program is identified by the first six characters in the file
name. The next two characters are either digits indicating a version
number or PK in the files compiled before we started version numbers.
The .EXE indicates that the file is a self-extracting executable. To
extract a file, place it in a directory by itself. There is a
file named README on all programs and one would overwrite another were
several programs extracted in the same directory. Extract each
program by issuing the program name followed by '-d'. For example, if
one of the files is named MYPROG20.EXE issue the command
MYPROG20 -d
The -d option causes the extraction to create subdirectories if needed.
COMPILER INFORMATION
The older programs (with PK in the file names) were compiled with
Microsoft Fortran, the newer ones (with a version number) were
compiled with WATCOM Fortran. (Exception, stattb12.exe contains
Microsoft compiled software.) WATCOM Fortran requires an Intel 386 or
better to run. The reason for the switch is that the 640K barrier
became a difficult problem with Microsoft Fortran.
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AVAILABLE PROGRAMS
BUSSPA
BUSSPA performs computations for the problem of testing for
differences in P1 and P2, the probabilities of success in two groups.
The number of successes is distributed binomially in each group, that
is, each trial has the same probability of success and the trials are
independent. The number of trials may differ in the two groups.
BUSSPA allows the calculation of exact significance levels for any
outcome. It performs calculations necessary to plan a trial of the
alternative hypothesis P1 and P2 are some specified unequal values
against the null hypothesis that P1 = P2.
EXTSIG
EXTSIG computes exact significance levels and the usual chi-square
statistic for testing the difference in two binomial proportions.
KSB1CI
KSB1CI (k-stage binomial one group confindence intervals) finds
confidence intervals for single- or multiple-stage trials involving a
single group which have a binomial outcome. The confidence intervals
are calculated by a minor modification of the Clopper and Pearson
method to k-stage use. The lower value of the confidence limit is
that probability that causes the observed number of events or more to
have probability 1-c/2 where c is the confidence level; the upper
limit is symmetrically defined.
KSBIN1
KSBIN1 performs computations needed to plan multiple-stage experiments
involving dichotomous outcomes for a single group; the outcomes are
distributed binomially. In k-stage experiments, the results are
examined at each of k predetermined times; at each examination, the
experiment can be terminated because of either early proof of the
result or because obtaining such proof is very unlikely if the
experiment is continued. The assumption of a binomial distribution of
outcomes implies that the outcomes are independent of each other at
that the probability of the event of interest is the same for each
outcome. KSBIN1 performs its calculations only for a single group;
i.e., the case in which a comparison of the probability of event with
a fixed value.
RANLIST
RANLIST produces randomization lists and offers a primitive form of
interactive randomization. RANLIST features both restricted and
unrestricted randomization. When restricted randomization is used,
fixed or random balance points may be chosen.
STATTAB
STATTAB calculates the cumulative distribution funcions, inverses, and
values of parameters for many common statistical distributions. It
can also produce tables of any one calculated iten as a function of a
specified list of values of another item.
This interactive program eliminates the need for statistical tables.
Those familiar with tcl/TK might want to obtain /unix/tk_stattab.tar.Z
which is a GUI packaging of STATTAB using that language.
STPLAN
STPLAN performs power, sample size, and related calculations needed to
plan studies. Parameters of a test include those necessary to
describe the distributions under the null and alternative hypotheses,
sample sizes, significance levels, and power. Given values for all
but one parameter, STPLAN will calculate the value of that one
parameter.
Version 4.0 features new packaging and the ability to make tables of
values.
SURVAN
Survival calculations including Kaplan-Meier estimation, log-rank and
Gehan-Breslow tests, proportional hazards and logistic regression
models.
WINDOWS
WINDOWS provides a variety of window/kernel/moving-average estimators.
Both fixed width and fixed number of nearest neighbor windowing is
provided. Weighting of points may be done either with boxcar or
biquartic weights. Estimates available include weighted mean, a
linear or quadratic fit, maximum or minimum value, a specified
percentile, the standard deviation, and the derivative of y with
respect to x. Cross validation is also included.
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HOW TO GET THIS AND OTHER VERSIONS OF THE CODE
The code is available by anonymous ftp to odin.mda.uth.tmc.edu
(129.106.3.17). Information is on file index of pub (this file).
The source is also available from statlib as uuencoded tar.Z
files. For information on statlib send mail whose message is 'send
index' to statlib@temper.stat.cmu.edu. For specific information on
these packages, add the line 'send utexas from general' to the
message.
Directory unix contains source code as tar.Z files. The source
includes Mac, MSDOS, UNIX, and Vax specific code where it is needed.
The code is written in portable Fortran 77 and moving it to other
machines is generally easy. To port it, look at the comments in the
machine specific code and write the same function for the new machine.
The remainder of the code should compile and run.
Directory 'msdos' contains MSDOS executables (and documentation);
directory 'mac' contains the same for Macintosh machines. The
executables for both machines are in self-extracting compressed files.
Barry W. Brown, Professor
of Biomathematics
Section of Computer Science
Department of Biomathematics,
Box 237
University of Texas M. D.
Anderson Hospital
1515 Holcombe Blvd
Houston, TX 77030
bwb@odin.mda.uth.tmc.edu
internet address is (129.106.3.17)