cmtk-ttest - Online in the Cloud

PROGRAM:

NAME

ttest - T-tests

SYNOPSIS

ttest [options] imageX0 [imageX1 ...] -- imageY0 [imageY1] ... ttest [options]
--symmetric imageX0 [imageX1 ...]

DESCRIPTION

Pixelwise tests of statistical significance. Also compute correlations and z-scores

OPTIONS

Global Toolkit Options (these are shared by all CMTK tools)
--help
Write list of basic command line options to standard output.

--help-all
Write complete list of basic and advanced command line options to standard output.

--wiki
Write list of command line options to standard output in MediaWiki markup.

--man
Write man page source in 'nroff' markup to standard output.

--version
Write toolkit version to standard output.

--echo
Write the current command line to standard output.

--verbose-level <integer>
Set verbosity level.

--verbose, -v
Increment verbosity level by 1 (deprecated; supported for backward compatibility).

--threads <integer>
Set maximum number of parallel threads (for POSIX threads and OpenMP).

Main Options
--log, -l
Use log data for testing

--abs, -a
Use absolute data for testing

--abs-out, -A
Generate absolute (unsigned) data

--invert, -i
Invert data, i.e., subtract from 1.0

--short, -s
Convert probabilities to short (and scale by 1000)

--paired, -p
Compute paired t-test [default: groupwise]

--cross-correlation, -c
Compute paired cross-correlation

--zscores, -Z
Compute z-scores of test (y) distribution averages

--text, -t
Text file input and output rather than image files.

--mask <string>, -m <string>
Mask file name [Default: NONE]

--outfile <string>, -o <string>
Output file name [Default: ttest.nii ]

--tstats-file <string>
T-statistics output file name (for correlation: p-value output file) [Default: NONE]

AUTHORS

Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R.
Maurer, Daniel B. Russakoff, and Yaroslav Halchenko

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