str_elems {strex}

Extract several single elements from a string.

Description

Efficiently extract several elements from a string. See str_elem() for extracting single elements. This function is vectorized over the first argument.

Usage

str_elems(string, indices, byrow = TRUE)

Arguments

string

A character vector.

indices

A vector of integerish values. Negative indexing is allowed as in stringr::str_sub().

byrow

Should the elements be organised in the matrix with one row per string (byrow = TRUE, the default) or one column per string (byrow = FALSE). See examples if you don't understand.

Value

A character matrix.

See Also

Other single element extractors: str_elem(), str_paste_elems()

Examples

string <- c("abc", "def", "ghi", "vwxyz")
str_elems(string, 1:2)
str_elems(string, 1:2, byrow = FALSE)
str_elems(string, c(1, 2, 3, 4, -1))