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re: st: Store results from table command in matrix


From   Christopher Baum <kit.baum@bc.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   re: st: Store results from table command in matrix
Date   Tue, 22 Nov 2011 10:52:22 -0500

<>
Barbro asks

Is there something similar to tabstatmat or makematrix for the table command?

I would like to use the results from a "table" command as a matrix.
-- example command

.table var1 var2 , c(mean var3) concise

does a simple solution to this problem exist?

Please help - I do seem to have problems in phrasing the question in a
way that doesn't produce a huge number of irrelevant results



No. As you can see from --return list--, the --table-- command does not save anything beyond the sample size.
Ian Watson's --tabout-- from SSC can be used to do this in a somewhat roundabout manner.

sysuse auto
tabout mpg rep78 using junk.csv, c(mean price) sum replace f(1)
insheet using junk.csv,clear
destring v*, force replace

This will create numeric variables. If you want them as a Stata matrix (why?) you can use mkmat. Note that values not appearing in the two-way table show up as missings, so you might want to mvencode them as zeros (or not).

Kit


Kit Baum   |   Boston College Economics & DIW Berlin   |   http://ideas.repec.org/e/pba1.html
                             An Introduction to Stata Programming  |   http://www.stata-press.com/books/isp.html
  An Introduction to Modern Econometrics Using Stata  |   http://www.stata-press.com/books/imeus.html


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