# SPSS and R scripts

Within the framework of my research, I sometimes have to write or rewrite scripts to make statistical packages do what I want them to do. Some of these scripts I put on this page. They might come in useful for somebody else.

- In 2008-09, I wrote an SPSS matrix procedure that produces a fuzzy cross table and that also calculates some of the usual statistics for a cross table. Why and how, I describe in a short research note.
- In 2007, I wrote an SPSS matrix procedure that computes a covariance matrix with a lot of numbers behind the decimal dot. You can download it here.
- In 2007, I adjusted a function of the R package CA (version 0.1-9) by Olec Nenadic and Michael Greenacre, to make it accept indicator matrices as input. With the R package CA one can perform various forms of correspondence analysis. The adjusted function is the function that enables you to perform multiple and joint correspondence analysis. With my adjustment to the function it is possible to work, for instance, with fuzzy coded data in these analyses.
- In 1998, I wrote an SPSS script that enables an orthogonal rotation of a PRINCALS solution. In 2002, I wrote a short article in
*ZUMA Nachrichten*about what PRINCALS does, and why you would want to rotate its solution. You will find the text of that article here.

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