cmtk-ttest1
T-tests
Usage
ttest [options]
imageX0
[imageX1 ...]
--
imageY0
[imageY1] ...
ttest
[options]
--symmetric
imageX0
[imageX1 ...]
Overview
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]
Acknowledgments
CMTK is developed with support from the NIAAA under Grant AA021697, National Consortium on Alcohol and Neurodevelopment in Adolescence (N-CANDA): Data Integration Component. From April 2009 through September 2011, CMTK development and maintenance was supported by the NIBIB under Grant EB008381.
Releases
7 releases since Debian 7 (Wheezy); the text changed 6 times.