A simple program to make and plot a least squares or maximum likelihood relation between

two parameters, plot a curve using the xy parameters or plot a hsitogram using the xy parameters. Input is from a file with two columns x and y.
If a linear fit is made, the
program also makes an output used with GMT in order to make nice
plots. The PostScript output file is `lsq.eps` and the GMT file is
`lsq_gmt.out`. In order to produce the GMT plot (only Unix), use
command `gmtxy lsq_gmt.out`.
The curve can be plotted with points only, lines joining the points with points plotted or just lines between points. X and y-axis for the curve plotting can be linear or logaritmic.

For plotting histograms, the input data must be equally spaced in x like e.g.

0 4

10 22

20 11

30 4

40 2

50 0

Examples of plots are found under program GETSTRESSDROP