Check if values are R NA symbol or any one of the na.strings elements
A value vector in the key will generally be a character vector. This utility is used to check if the characters are either R missing or values in a list of characters that represent missings.
isNA(x, na.strings = c("\\.", "", "\\s+", "N/A"))x |
Input data vector |
na.strings |
Vector of string values to be considered as missing. Defaults will match values that are equal to ., empty string, any number of white space elements, or charcter string N/A. We do not include 'NA' by default because some projects use NA to mean "not appropriate". |
Logical vector, TRUE if a value is either NA or in na.strings.
x1 <- c("TRUE", "FALSE", FALSE, TRUE, NA, "NA", ".", "N/A", " ", "")
x1na <- kutils:::isNA(x1)
cbind(x1, x1na)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.