| 1 |
greg |
1.3 |
.\" RCSid "$Id: gcomp.1,v 1.2 2003/12/09 15:59:06 greg Exp $" |
| 2 |
greg |
1.1 |
.TH GCOMP 1 6/24/98 RADIANCE |
| 3 |
|
|
.SH NAME |
| 4 |
|
|
gcomp - do computations on a graph file. |
| 5 |
|
|
.SH SYNOPSIS |
| 6 |
|
|
.B gcomp |
| 7 |
|
|
[ |
| 8 |
|
|
.B -amilh |
| 9 |
|
|
][ |
| 10 |
|
|
.B +variable value .. |
| 11 |
|
|
][ |
| 12 |
|
|
.B file .. |
| 13 |
|
|
] |
| 14 |
|
|
.SH DESCRIPTION |
| 15 |
|
|
.I Gcomp |
| 16 |
|
|
reads each graph |
| 17 |
|
|
.I file |
| 18 |
|
|
in sequence and computes the specified calculations. |
| 19 |
|
|
The type options are as follows: |
| 20 |
|
|
.TP 10n |
| 21 |
|
|
.BR \-n |
| 22 |
|
|
Print the name of each curve. |
| 23 |
|
|
.TP |
| 24 |
|
|
.BR \-a |
| 25 |
|
|
Print average and standard deviation of each curve. |
| 26 |
|
|
.TP |
| 27 |
|
|
.BR \-m |
| 28 |
|
|
Print minimum and maximum for each curve. |
| 29 |
|
|
.TP |
| 30 |
|
|
.BR \-i |
| 31 |
|
|
Print Romberg's approximation to the integral of each curve. |
| 32 |
|
|
.TP |
| 33 |
|
|
.BR \-l |
| 34 |
|
|
Print the slope, intercept, and correlation coefficient using |
| 35 |
|
|
the least squares method of linear regression. |
| 36 |
|
|
.TP |
| 37 |
|
|
.BR \-h |
| 38 |
|
|
Do not print a header in the output. |
| 39 |
|
|
.PP |
| 40 |
|
|
The calculations will be displayed as columns in the order |
| 41 |
|
|
they are specified on the command line. |
| 42 |
|
|
If no files are given, the standard input is read. |
| 43 |
|
|
.PP |
| 44 |
|
|
Variables can be set explicitly with |
| 45 |
|
|
.I +variable value |
| 46 |
|
|
options. |
| 47 |
|
|
The only truely useful variables for this program |
| 48 |
|
|
are xmin and xmax. |
| 49 |
|
|
They determine boundaries for the calculations. |
| 50 |
|
|
.SH EXAMPLE |
| 51 |
|
|
To compute the approximate integral of sin(x)/log(x) from 2 to 4: |
| 52 |
|
|
.nf |
| 53 |
|
|
gcomp -i |
| 54 |
|
|
A(x)=sin(x)/log(x); |
| 55 |
|
|
Anpoints=100; |
| 56 |
|
|
xmin=2; |
| 57 |
|
|
xmax=4; |
| 58 |
|
|
^D |
| 59 |
|
|
.fi |
| 60 |
|
|
.SH AUTHOR |
| 61 |
|
|
Greg Ward |
| 62 |
|
|
.SH BUGS |
| 63 |
|
|
Only the y values can be used for computation. |
| 64 |
|
|
.SH "SEE ALSO" |
| 65 |
greg |
1.3 |
bgraph(1), dgraph(1), icalc(1), igraph(1) |
