cartesian product with dplyr R

Question

I\'m trying to find the dplyr function for cartesian product. I\'ve two simple data.frame with no common variable:

x <- data.frame(x=c(\"a\",\"b\",\"c\"))         


        

Answer 1

If we need a tidyverse output, we can use expand from tidyr

library(tidyverse)
y %>% 
   expand(y, x= x$x) %>%
   select(x,y)
# A tibble: 9 × 2
#       x     y
#   
#1      a     1
#2      b     1
#3      c     1
#4      a     2
#5      b     2
#6      c     2
#7      a     3
#8      b     3
#9      c     3