Reputation: 85
I'm attempting to count the number of observations in a variable with missing values. This would seem to require the following simple code:
count if control_ == "."
The observations in variable control are strings. When I run the above code, I get a "0," but when I browse the data, there are many missing values. I have also tried:
count if control_ == " "
What may be happening?
Upvotes: 0
Views: 515
Reputation: 1103
Your code, count if control_ == " "
is counting strings that are a single space. Try count if control_ == ""
(with no space between the quotation marks).
Upvotes: 1