Library: | xplore |
See also: | countNaN countNotNumber isInf isNumber |
Quantlet: | isNaN | |
Description: | Determines whether elements of an array are missing values (NaN). |
Usage: | y = isNaN (x) | |
Input: | ||
x | array | |
Output: | ||
y | array with 1 (true, is NaN) or 0 (false) |
library("xplore") x = #(0/0, 1/0, -1/0, 1) x ~ isNaN(x)
Contents of _tmp [1,] NaN 1 [2,] Inf 0 [3,] -Inf 0 [4,] 1 0