**fScan Reference Manual, Chapter 2 (CmdLineOptions:Expr): Regress**
===== Regress -- Regression filter a temporal variable from a time course =====
 **usage:  -expr regress reffunc flag nbins**\\
The REGRESS expression operator performs time course regression filtering based on the temporal reference 
function REFFUNC.  

  * REFFUNC can be a standard time course variable name
(see [[jvs:fscan:manual:chapter4:timevarbs|TimeVariables]]) or a previously user-defined reference variable
(see [[jvs:fscan:manual:chapter2:reference|Reference]]).

  * FLAG - specify regression options (combine options by adding values):
    * 1 - 
    * 2 - 
  * NBINS - number of bins to use for subdividing REFFUNC values (default=16)

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