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
I'm not sure how your count statements show that you should have perfect
negative correlation - in particular, it won't be perfect if wifeprim = 0
and wifelit ever equals anything other than 1. Why don't you do a crosstab
of the 2 variables, e.g. -tab wifelit wifeprim- .
