You evidently have two dummies here, both 0 or 1.
You give two of the four possible
counts, from which we can infer that
in 14316 - 2458 cases the values are 1 0 or 0 0.
That seems entirely consistent with the correlation
you get. The entire 2 by 2 table from -tab wifeprim
wifelit- is the context for the correlation.
Nick
[email protected]
Kenley Barrett
> I am getting strange results when I run the "corr" command on my
> variables. From my understanding, "corr" gives the correlation
> coefficient, so if a value of 1 for Dummy Variable A guarantees a
> value of 0 for Dummy Variable B, then corr should give a result of -1.
> But instead I am getting values between 0 and -1. A sample of two
> variables shown below:
>
> . count if wifelit == 1 & wifeprim == 1
> 0
>
> . count if wifelit == 0 & wifeprim == 1
> 2458
>
> . corr wifelit wifeprim
> (obs=14316)
>
> | wifelit wifeprim
> -------------+------------------
> wifelit | 1.0000
> wifeprim | -0.1062 1.0000
>
> What could be the problem? Am I misunderstanding the corr command?
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