Hey,

Is it possible that R can calculate each options under each column and
return a summary table?

Suppose I have a table like this:

Gender   Age   Rate
Female    0-10   Good
Male        0-10   Good
Female     11-20  Bad
Male         11-20  Bad
Male         >20     N/A

I want to have a summary table including the information that how many
answers in each category, sth like this:

  X         Gender
Male       3
Female    2
N/A        0

  X          Age
0-10         2
11-20         2
>20           1
N/A         0

X          Rate
Good       2
Bad          2
N/A         1

So basically I want to calculate, in each column, how many people choose
each answer, including N/A. I know I can do it in Excel in a very
visualized way, but is there anyway to do it in R in a robust way if I have
a fairly large dataset.

Thanks!

	[[alternative HTML version deleted]]

