NAME:
  rescale
 PURPOSE:   (one line only)
  Scale data for plotting from one range to another.
 DESCRIPTION:
 CATEGORY:
  Plotting
 CALLING SEQUENCE:
  res=rescale(data,inrange,outrange)
 INPUTS:
  data     - Vector of data to be rescaled
  inrange  - range of input data
  outrange - range of output data
 OPTIONAL INPUT PARAMETERS:
 KEYWORD INPUT PARAMETERS:
 OUTPUTS:
  return value is a scaled copy of the input data
 KEYWORD OUTPUT PARAMETERS:
 COMMON BLOCKS:
 SIDE EFFECTS:
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
  2011/02/07, Written by Marc W. Buie, Southwest Research Institute