**fScan Reference Manual, Chapter 2 (CmdLineOptions): glm**
===== Design -- General Linear Model Statistics=====
**usage: -glm [verbose] [flag] [designmtx] outname **

GLM takes a design matrix (DESIGNMTX) as input to perform a general linear model
multiple regression analysis on the current 4-D image data set.
Depending on the FLAG option, the output may be a single data set or multiple data sets.

FLAG - specify processing options (combine options by adding values:
  * 1 - generate a beta map for each column in the DESIGNMTX
  * 2 - generate all beta maps together in a single 4-D output data set
  * 4 - generate a residual 4-D data set (the original data with all DESIGNMTX waveforms regressed out)

DESIGNMTX is the name of the design matrix, already loaded using the [[jvs:fscan:manual:chapter2:design|DESIGN]] or [[jvs:fscan:manual:chapter2:physio|PHYSIO]] commands. If no valid matrix name is specified, the current active design matrix (most recently used in a DESIGN or PHYSIO command) will be used.

OUTNAME is the name prefix to use for all new data sets created by the GLM.

**See Also:**\\
[[jvs:fscan|fScan Home]], 
[[jvs:fscan:manual|fScan Manual]], 
[[jvs:fscan:manual:chapter2|CmdLineOptions]], 
[[jvs:fscan:manual:help|Manual Help]]