Which elements contain missings?

Equivalent to which(is.na()) - returns integer locations of missing values.

Usage

which_na(x)

Arguments

x

a dataframe

Value

integer locations of missing values.

See also

where_na()

Examples

which_na(airquality)
#>  [1]   5  10  25  26  27  32  33  34  35  36  37  39  42  43  45  46  52  53  54
#> [20]  55  56  57  58  59  60  61  65  72  75  83  84 102 103 107 115 119 150 158
#> [39] 159 164 180 249 250 251