**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 Rombergâ€™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)