Help System (web edition)

FILE MASK <data>,<1st_var>,<mask_column>,<masks> 
writes <masks> in <mask_column> from <1st_var> onwards.
Example: FILE MASK DATA1,CASE,1,---
makes variable CASE and two next ones passive (-) in data file DATA1.

Other forms of FILE MASK:
FILE MASK DATA1,VAR3,1,A...
sets mask A (in mask column 1) for variables from VAR3 onwards.
FILE MASK DATA1,#2,3,P...
sets mask P (in mask column 3) for variables from variable #2 onwards,
i.e. protects them.
FILE MASK DATA1,(XYZ),1,A
sets mask A (in mask column 1) for variables activated by X,Y, or Z.

FILE MASK with a MASKING list: (Example)

FILE MASK DECA,M1,1
                      Comments
MASKING M1
Points:           Y / Regressand Points
100m-400m,Weight: X / Regressors 100m,L_jump,Shot_put,L_jump,400m,Weight
RES:              R / Residuals  RES
OTHERS:           -
END

Also indices of variables can be used. Thus in DECA, #3-#7 is the same
as 100m-400m.

  D = More information on data management