NAME

     linear2 - Output linear combination of  three  input  files:
     file_out = a*file_in1 + b*file_in2 + c*file_in3

SYNOPSIS

     linear2 [ -N1ntap1 ] [ -N2ntap2 ] [ -N3ntap3 ] [ -Ootap ]  [
     -amp1amp1 ] [ -amp2amp2 ] [ -amp3amp3 ] [ -? ]

DESCRIPTION

     linear2 weights  and  stacks  3  input  data  sets.  Current
     options are:

      1. default: output = N1 + N2 + N3

     linear2 gets both its data and its parameters  from  command
     line  arguments.  These arguments specify the input, output,
     N1, N2 and N3 amplitude multiplier.


  Command line arguments
     -N1 ntap1 [default = stdin]
          Enter the input data set name or file immediately after
          typing  -N1.   This  input file should include the com-
          plete path name if the  file  resides  in  a  different
          directory.   Example -N1/vsp/dummy tells the program to
          look for file 'dummy' in directory 'vsp'.

     -N2 ntap2 [default = none]
          Enter the input data set name or file immediately after
          typing -N2. This input file should include the complete
          path name if the file resides in a different directory.
          Example  -N2/vsp/dummy  tells  the  program to look for
          file 'dummy' in directory 'vsp'.

     -N3 ntap3 [default = none]
          Enter the input data set name or file immediately after
          typing -N3. This input file should include the complete
          path name if the file resides in a different directory.
          Example  -N3/vsp/dummy  tells  the  program to look for
          file 'dummy' in directory 'vsp'.

     -O otap [default = stdout]
          Enter the output data  set  name  or  file  immediately
          after  typing -O. This output file is not required when
          piping the output to another process.  The output  data
          set also requires the full path name (see above).

     -amp1 amp1
          Enter the multiplier to be applied to  the  N1  dataset
          [Default=1]


     -amp2 amp2
          Enter the multiplier to be applied to  the  N2  dataset
          [Default=1]

     -amp3 amp3
          Enter the multiplier to be applied to  the  N3  dataset
          [Default=1]

     -? -h -help
          Enter the command line argument '-?'   or  '-h'  or  '-
          help'  to get online help. The program terminates after
          the help screen is printed.

BUGS

      Unknown

AUTHOR

     B. Duquet [ATTC]