table-percentages

[noamross]

https://github.com/noamross/zero-dependency-problems/blob/master/R/table-percentages.md

        category

type A B
1 30 79
2 12 94
3 29 6

As you can see the table counts frequencies, but I want it to calculate the percentages instead. I have tried prop.table but I get the following error

Error in FUN(X[[1L]], ...) : only defined on a data frame with all numeric variables

I couldn't find a solution anywhere else; please help. Thank you.

Here's my sample data:

head(items)

      item   type category

[1] PA100 1 A
[2] PB101 2 A
[3] UR360 2 A
[4] PX977 3 B
[5] GA008 3 B>
[6] GR446 3 A>