.c
Simple Statistics Package
.s
This directory contains a simple statistics subroutine and
a test driver which implements a simple statistics program.
.s
Both accept a set of (x,y) pairs and compute the following
statistics:
.list 'o'
.le;mean of x
.le;mean of y
.le;variance of x
.le;variance of y
.le;standard deviation of x
.le;standard deviation of y
.le;coefficients of best-fit line (y=mx+b)
.le;coefficients of best-fit line (x=my+b)
.le;standard error for each of above best-fit lines
.le;coefficient of correlation between x and y
.le;confidence level in above coefficient
.end list
See the source of the statistics subroutine (STATPAK.FOR)
for details on the calling sequence.  Feel free, of course,
to modify the program for your needs.  Some typical modifications
might be to change from REAL*8 to REAL*4, to drop unneeded
calculations, and/or to add new ones.
.s
The program (STATDRV.FOR and STATDRV.EXE) is self explanatory
when run.  It produces two reports, one to the terminal and
one to the file STAT.OUT.  Both contain the computed
statistics produced by STATPAK. In addition, the report in
STAT.OUT produces a list of the input (x,y) pairs.
.s
The command file (STATPAK.BLD) compiles both programs and
links STATDRV.EXE.
.s2
Please feel free to write or phone (though I am extremely difficult
to get hold of by phone) with any questions, comments, etc.
.s2
.lit
		Dennis K. Fitzgerald
		Computer Sciences Corporation
		4600 Powder Mill Road
		Beltsville, MD.  20705

		(301) 937 0760 x4166
.end literal