plsfam: Set family file parameters 

DESCRIPTION:

    Sets variables dealing with output file familying.	Does nothing if
    familying not supported by the driver.  This routine, if used, must be
    called before initializing PLplot.	See the PLplot documentation for
    more information. 

SYNOPSIS:

plsfam(fam, num, bmax)

ARGUMENTS:

    fam (PLINT, input) :    Family flag (Boolean).  If nonzero, familying
    is enabled. 

    num (PLINT, input) :    Current family file number. 

    bmax (PLINT, input) :    Maximum file size (in bytes) for a family
    file.