as_numv {labelr}

Convert a Suitable Character Vector to Numeric

Description

as_numv determines whether a character vector can be coerced to numeric without generating new NA values and, if so, it makes that conversion (similar to Stata's destring command).

Usage

as_numv(x, nan2na = TRUE, inf2na = TRUE)

Arguments

x

a character vector.

nan2na

a logical argument. TRUE if the non-case-sensitive string "nan" should be converted to NA.

inf2na

a logical argument. TRUE if the non-case-sensitive strings "inf" or "-inf should be converted to NA.

Details

Core labelr functions coerce integers to characters and back, which as_numv facilitates. Note that character values of "NA" (including "na", "Na", and "nA") will be converted to NA and, by default, so will other "irregular" values (in the sense of check_irregular).

Value

a vector, converted to numeric if feasible (else, the same character vector that was supplied).

Examples

set.seed(123)
x1 <- runif(10)
x2 <- as.character(sample(c(1:20), 10, replace = TRUE))
x2_num <- as_numv(x2)
class(x2)
class(x2_num)
head(x2)