R 문자열 곱집합

1 개요

R 문자열 곱집합

a <- c('hello', 'world')
b <- c('Alice', 'Bob', 'Carol')
df <- expand.grid(a, b)
df

names(df) <- c('greet','student')
df

apply(expand.grid(a,b), 1, function(x) paste0(x, collapse="-"))

2 같이 보기

• 곱집합

3 참고

• https://codereview.stackexchange.com/questions/58595/generating-cartesian-product-of-strings-in-r