Cross tab analysis with three variables

[Margarethsa]

I have a question regarding cross tab analysis: is it possible to run a cross-tab analysis with three variables? As when I try to list three variables I keep getting feedback that there are "too many variables specified", is there any way to avoid this?

[Svend Juul]

bysort a: tab2 b c

[Rich Goldstein]

it is not clear what you want such a table to look like; a different option is to use the -table- command with either supercol or superrow; see the help file

[Alan Neustadtl]

It's a little bit of work but what about the following:

sysuse auto, clear
gen mpgdum=.
replace mpgdum=0 if mpg<=22.1
replace mpgdum=1 if mpg> 22.1

levelsof rep78

foreach i of numlist `r(levels)' {
  tab mpgdum for if rep78==`i', chi col nofreq
}

Here, rep78 is the control variable.

Best,
Alan

[Svend Juul]

Rich, Alan:
I think "Margarethsa"s question is as simple as the answer I gave in post #2.

Margarethsa:
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