nifti_stats - Man Page

nifti_stats [-q|-d|-1|-z] val CODE [p1 p2 p3]

Demo program for computing NIfTI statistical functions.

val 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     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

Author - RW Cox - SSCC/NIMH/NIH/DHHS/USA/EARTH - March 2004