noamross / zero-dependency-problems

Real-world code problems in R, without dependencies
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table-percentages #18

Open noamross opened 9 years ago

noamross commented 9 years ago

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>