This is both an announcement and a plea for help: some time ago, I put together some functions for simple correspondence analysis, which I am not at all an expert of (I used to be pretty good at this stuff in the late 1980s, then I stopped following the literature).

These functions are now available as a function package, that you'll find on the server under the "corresp" name. I decided to make this stuff public because it's a nice illustration of how to use string arrays, so you'll need a pretty recent version of gretl to run it.

Besides, in order to run the example, you'll also need the datafile attached here, which contains a classic example, used in practically all software implementations as a simple benchmark (see Greenacre (2007), "CORRESPONDENCE ANALYSIS in PRACTICE", Chapman & Hall).

The plea for help is: is there anybody out there who will adopt the package? I'm not at all sure I implementend things the right way and, as I said, I haven't followed the literature for a looooong time (and I have no intention/time for doing so).

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  Riccardo (Jack) Lucchetti
  Dipartimento di Scienze Economiche e Sociali (DiSES)

  Università Politecnica delle Marche
  (formerly known as Università di Ancona)

  r.lucchetti@univpm.it
  http://www2.econ.univpm.it/servizi/hpp/lucchetti
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