R Commander: "Frequency distributions" is greyed / grayed out?

My data set mostly contains categorical variables, but they're all coded as numbers (e.g., male = 0, female = 0, etc.).

In the menu, the following is greyed out:
Statistics>Summaries>"Frequency distributions"

What gives? And how can I skirt around this?


Update: it's okay, I figured it out... R Commander wasn't recognizing them as categorical variables. To fix this, I had to go to Data>Manage variables in active set>convert numeric variables to factors
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