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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)