Index TableOfContents

Name

mkcontrast-sess - creates a contrast matrix that is then used as input to test hypotheses.

Synopsis

mkcontrast-sess

Arguments

Positional Arguments

None

Required Flagged Arguments

None

Optional Flagged Arguments

-analysis analysisname (or use -an)

name of session-level functional analysis

Name of the analysis to create the contrast for. The analysis must have been defined by mkanalysis-sess. Also, selxavg-sess must have been run at least once.

|| -contrast contrastname (or use -co) || contrast name || The name of the contrast. || The name of the contrast. This name is then used in later programes (eg, stxgrinder-sess). mkcontrast-sess will create a matlab file in the study analysis directory. This file will be called contrastname.mat. When stxgrinder-sess is run, it will create a subdirectory called contrastname under the analysis directory for each sessions.

-a a1 <-a a2 ...>

positive contrast conditions

These specify which conditions to use in the contrast, where 1, a2, c1, c2, etc, are the condition numbers as found in the paradigm file. The -a conditions will be weighted positively. The -c conditions will be weighted negatively. Eg, -a 2 -c 1 -c 3 will weight conditions 1 and 3 by -0.5 and condition 2 by +1.

-c c1 <-c c2 ...>

negative contrast conditions

These specify which conditions to use in the contrast, where 1, a2, c1, c2, etc, are the condition numbers as found in the paradigm file. The -a conditions will be weighted positively. The -c conditions will be weighted negatively. Eg, -a 2 -c 1 -c 3 will weight conditions 1 and 3 by -0.5 and condition 2 by +1.

-setwdelay

specifying conditions to use in the contrast

detailed description (eg, help file information)

Outputs

volume1

description

volume2

description

Description

description

Examples

Example 1

command foo -i f -o out

description

Example 2

command foo -i f -o out -f fvalue

description

Bugs

None

See Also

["othercommand1"], ["othercommand2"]

Links

FreeSurfer, FsFast

Methods Description

description
description

References

["References/Lastname###"]

Reporting Bugs

Report bugs to <analysis-bugs@nmr.mgh.harvard.edu>

Author/s

JaneSmith