string - counting occurrence of particular letter in vector of words in r

Question

I am trying to count number of particular letter in long vector of words.

for example:

I would like to count number of letter "A" in the following vector.

myvec <- c("A", "KILLS", "PASS", "JUMP", "BANANA", "AALU", "KPAL")

So intended output would be:

c(1,0,1,0, 3,2,1)

Any idea ?

Answer 1

For a succinct base R solution, try this:

nchar(gsub("[^A]", "", myvec))
# [1] 1 0 1 0 3 2 1