merge two vectors using one as the header for the other

Question

I have two vectors.

x <- c("a","b","c")
y <- c(NA, 1, NA)

I want to combine to get the following where x is the column heading:

  a  b   c
 NA  1  NA

Possible duplicate of [Creating a named list from two vectors (names, values)](https://stackoverflow.com/questions/17842705/creating-a-named-list-from-two-vectors-names-values) — Ronak Shah, Nov 22 '17 at 06:21

score 3 · Accepted Answer · answered Nov 22 '17 at 05:15

3

You can data frame the transpose of y and then use x to assign the column names.

df <- data.frame(t(y))
names(df) <- x

df
   a b  c
1 NA 1 NA

Demo

answered Nov 22 '17 at 05:15

Tim Biegeleisen

Tim no need to convert to df – Hardik Gupta Nov 22 '17 at 05:27
1

`x <- c("a","b","c") y <- c(NA, 1, NA) names(y) <- x` – Hardik Gupta Nov 22 '17 at 05:28
@Hardikgupta I interpreted the phrase `column names` in the OP to mean that a data frame/table was wanted. Maybe I'm wrong. – Tim Biegeleisen Nov 22 '17 at 05:29
4

Or other option is `setNames(as.data.frame.list(y), x)` – akrun Nov 22 '17 at 05:39