!
not.Rd
Inversion of boolean expression.
Inversion of boolean expression.
Details
not
and !
cannot be applied directly to numerical column.
To achieve R-like truthiness column has to be casted to BooleanType
.
See also
Other non-aggregate functions:
column()
,
column_nonaggregate_functions
Examples
if (FALSE) {
df <- createDataFrame(data.frame(x = c(-1, 0, 1)))
head(select(df, !column("x") > 0))
}
if (FALSE) {
df <- createDataFrame(data.frame(
is_true = c(TRUE, FALSE, NA),
flag = c(1, 0, 1)
))
head(select(df, not(df$is_true)))
# Explicit cast is required when working with numeric column
head(select(df, not(cast(df$flag, "boolean"))))
}