NIFTI_STATS(1) User Commands NIFTI_STATS(1)
NAME
nifti_stats - compute NIfTI statistical functions
SYNOPSIS
nifti_stats [-q|-d|-1|-z] value CODE [p1 p2 p3]
DESCRIPTION
nifti_stats supports several distributions (normal, uniform, logistic, chi, etc.) and calculates density or cummulative distribution func-
tion (and many more). Values are printed to stdout and can be piped to other tools.
value can be a single number or in the form bot:top:step.
default ==> output p = Prob(statistic < val).
-q ==> output is 1-p.
-d ==> output is density.
-1 ==> output is x such that Prob(statistic < x) = val.
-z ==> output is z such that Normal cdf(z) = p(val).
-h ==> output is z such that 1/2-Normal cdf(z) = p(val).
Allowable CODEs:
CORREL, TTEST, FTEST, ZSCORE, CHISQ, BETA, BINOM, GAMMA, POISSON, NORMAL, FTEST_NONC, CHISQ_NONC, LOGISTIC, LAPLACE, UNIFORM, TTEST_NONC,
WEIBULL, CHI, INVGAUSS, EXTVAL, PVAL, LOGPVAL and LOG10PVAL
Following CODE are distributional parameters, as needed.
Results are written to stdout, 1 number per output line.
EXAMPLE
Piping output into AFNI program 1dplot:
nifti_stats -d 0:4:.001 INVGAUSS 1 3 | 1dplot -dx 0.001 -stdin
SEE ALSO
libnifti(1), nifti_tool(1), nifti1_test(1).
Homepage: http://niftilib.sourceforge.net
AUTHOR
RW Cox - SSCC/NIMH/NIH/DHHS/USA/EARTH - March 2004
This manual page was written by Michael Hanke <michael.hanke@gmail.com>, for the Debian project (but may be used by others).
nifti_stats September 2007 NIFTI_STATS(1)