sfilter_apply_nonrec 

Performs filtering in lowpass, highpass, bandpass, or bandstop (notch) mode by using the working array that was computed by SFILTER_INIT_NONREC.

FORMAT

  SFILTER_APPLY_NONREC (in, out, temp_array, [status])

Arguments

  in                  REAL*4
                      On entry, an array IN containing the data to be
                      filtered.
                      On exit, in is unchanged.

  out                 REAL*4
                      On entry, a one-dimensional array OUT to contain the
                      filtered data.  The IN and OUT arrays can be the same
                      array.
                      On exit, out is overwritten and contains the filtered
                      data.

  temp_array          REAL*4
                      On entry, the temporary array of length 510 used for
                      temporary storage of the filter coefficients generated
                      by the sfilter_init_nonrec subroutine.
                      On exit, temp_array is unchanged.

  status              INTEGER*4
                      On entry, an optional variable with an unspecified
                      value.
                      On exit, status is overwritten.  When the subroutine is
                      called, status is defined and its integer value
                      describes the status of the operation.

                      The following table shows the status function names,
                      their associated integer status description associated
                      with each integer.

  Status Function         Value      Description
                          Returned
 DXML_SUCCESS()          0          Succesful execution

 DXML_MAND_ARG()         1          Mandatory argument is missing

 DXML_ILL_TEMP_ARRAY()   2          temp_array is corrupted or incorrect

Description

  The SFILTER_APPLY_NONREC subroutine uses the working array that was
  computed by SFILTER_INIT_NONREC for repeated filtering operations.