NAME
chan_mult - multiply columns of data by a given factor
chan_add - add a given value to columns of data
SYNOPSIS
chan_mult factor num_columns column [column column ...] < infile > outfile
chan_add value num_columns column [column column ...] < infile > outfile
DESCRIPTION
Mult_chan
will multiply all numbers in the specified columns by the given
factor. The infile is
an ASCII file, with columns separated by white space. The columns are
numbered from 0 to (n-1).
Add_chan
behaves analogously, but with
addition rather than multiplication.
EXAMPLES
These routines are useful for converting between units in animation
tables.
To multiply all but the first column of a four-column file by 2.54:
chan_mult 2.54 4 1 2 3
To add ten to the first six columns of an eight-column file:
chan_add 10.0 8 0 1 2 3 4 5
To convert the second of three columns from Fahrenheit to Celcius:
chan_add -32 3 1
chan_mult 0.56 3 1
BUGS
The files must contain numbers and whitespaces only.
AUTHOR
Carl J. Nuzman
"BUG REPORTS"
Reports of bugs or problems should be submitted via electronic
mail to <CAD@BRL.MIL>.