plsstrm: Set current output stream 

DESCRIPTION:

    Sets the number of the current output stream.  The stream number
    defaults to 0 unless changed by this routine.  The first use of this
    routine must be followed by a call initializing PLplot (e.g. plstar). 

SYNOPSIS:

plsstrm(strm)

ARGUMENTS:

    strm (PLINT, input) :    The current stream number.