Question

I have 10 letters “a b c d e f g h i j” and 200 numbers from 1 to 200 with different number of instances, e.g. five 1s three 2s etc. making up 200 numbers in total.

I would like to assign each number a letter such that each letter has equal frequency.

So in this case I want 20 instances of each letter.

My problem is that I would like to randomly assign letters to numbers.

An example would be:

1 1 1 1 1 2 2 3 3 3 3 3 3 4 5 6 7 7 7 ...until 200

a a a a a e e f f f f f f d i j c c c ...until 200

Answer 1

Start with this– I’m deliberately not overwriting the existing column in A

Rgames> B<-sample(letters,10)
Rgames> B
 [1] "b" "m" "l" "v" "c" "t" "s" "i" "n" "j"
Rgames> A<-sample(1:10,10,replace=TRUE)
Rgames> A
 [1] 3 3 2 8 1 5 5 8 2 6
Rgames> A.new<-B[A]
Rgames> A.new
 [1] "l" "l" "m" "i" "b" "c" "c" "i" "m" "t"

Then you could cbind if desired to combine A.new and A