On Mon, 18 Jun 2007, andreas.karlsson(a)ltv.se wrote:
> On Mon, 11 Jun 2007, andreas.karlsson(a)ltv.se wrote:
>
>> Also, if it is not too hard, could you please add an option to save the
>> cross tabulation table that is produced by the xtab command as a
 matrix?
>
> How much of this table do you think we should put into a matrix?
> Just the frequency counts?  Allin.
 I think that for a table with MxM cells of frequency counts it is most
 useful to save it as an MxM matrix, and thus not include the row and column
 marginal totals. These could easily be calculated anyway. 
IMO, it would be nice to be able to save the matrix from a script too. 
Unfortunately, the syntax for this is not exactly obvious. One possibility 
could be appending a --save option to the xtab command, but then, what 
should the name of the saved matrix be?
Alternatively, one may create an mxtab function, to be used as
matrix foo = mxtab(x,y)
I'd rather have this, since it may well be that one wants to store the 
matrix for further processing without actually seeing it. That is a bit 
more complicated to code, but it can be done.
Or is all this totally useless? Opinions?
Riccardo (Jack) Lucchetti
Dipartimento di Economia
Università Politecnica delle Marche
r.lucchetti(a)univpm.it
http://www.econ.univpm.it/lucchetti