These are three programs I wrote in the early 1990s to analyze data. By now, there are a number of alternatives available, but to me these programs are still serving a good purpose. I even sometimes make small changes....
The programs are written in good-old Fortran-77 and come as source code.
- scatter
- Scatter is a program to make X-Y plots. It reads a column-formatted file of data points (one line per data point). It writes its output as an "svg" file that can be handled by programs like InkScape.
Download scatter version 3.0 (28 December 2008), or read its manual
- balkjes
- Balkjes is a program to make histograms. It reads a column-formatted file of data points (one line per data point). It writes its output as an "svg" file.
Download balkjes version 4.0 (28 December 2008), or read its manual
- contour3d
- Contour3D is a program that reads a special file containing an XYZ grid with scalar data, and writes an "OOGL" file with a 3D contour. "OOGL" data can be viewed using the ancient geomview program.
Download contour3d version 3.0.







