NAME

       gcomp - do computations on a graph file.

SYNOPSIS

       gcomp [ -amilh ][ +variable value ..  ][ file ..  ]

DESCRIPTION

       Gcomp reads each graph file in sequence and computes the specified calculations.  The type
       options are as follows:

       -n        Print the name of each curve.

       -a        Print average and standard deviation of each curve.

       -m        Print minimum and maximum for each curve.

       -i        Print Romberg's approximation to the integral of each curve.

       -l        Print the slope, intercept, and correlation coefficient using the least  squares
                 method of linear regression.

       -h        Do not print a header in the output.

       The  calculations  will  be  displayed  as  columns in the order they are specified on the
       command line.  If no files are given, the standard input is read.

       Variables can be set explicitly with +variable value  options.   The  only  truely  useful
       variables  for  this  program  are  xmin  and  xmax.   They  determine  boundaries for the
       calculations.

EXAMPLE

       To compute the approximate integral of sin(x)/log(x) from 2 to 4:
            gcomp -i
            A(x)=sin(x)/log(x);
            Anpoints=100;
            xmin=2;
            xmax=4;
            ^D

AUTHOR

       Greg Ward

BUGS

       Only the y values can be used for computation.

SEE ALSO

       bgraph(1), dgraph(1), icalc(1), igraph(1)