This allows me to delete single column:
a <- c(1,2,3,NA,5)
b <- c(1,2,3,4,5)
c <- c(1,2,3,4,NA)
d <- c(1,2,3,4,5)
z<-tibble(a, b, c, d)
z
z<-select(z, -starts_with('c'))
z
(More examples here: how to drop columns by passing variable name with dplyr? )
Now instead of giving name of single column I want to give a vector with column names that should be deleted. How to do that?