# st: RE: Re: "cond" command

 From "Nick Cox" To Subject st: RE: Re: "cond" command Date Fri, 12 Sep 2008 15:23:50 +0100

```The -groups- command on SSC looks appropriate for this kind of question.

Nick
n.j.cox@durham.ac.uk

Leonor Saravia

What I need to do is this:
I have three variables: jub = (1, 0) ; inv = (1,0) ; sob = (1,0)
and I need to look the number of observations that satisfy each
condition, ei, I need to know how many persons "have" jub == 1 or jub
== 0; how many have inv == 1 or inv == 0 and how many hve sob == 1 or
sob == 0.
So, thatīs why I thought that I could generate another variable
(pension = jub + inv + sob) which might be useful to order the
obervations.
The kind of table Iīd like to construct is something like this (thatīs
why I thought that using the 'cond' function was right):

pension   |    jub                  |         inv           |
sob        |
|    if == 1 |  if == 0|  if == 1 |  if == 0|  if == 1 |
if == 0|
1             |    N 1     |    N0   |   n1     |   n0     |   x1
|  x0      |
2             |    N 1     |    N0   |   n1     |   n0     |   x1
|  x0      |
3             |    N 1     |    N0   |   n1     |   n0     |   x1
|  x0      |
0             |    N 1     |    N0   |   n1     |   n0     |   x1
|  x0      |

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```