| when {SparkR} | R Documentation |
Evaluates a list of conditions and returns one of multiple possible result expressions. For unmatched expressions null is returned.
## S4 method for signature 'Column' when(condition, value) when(condition, value)
condition |
the condition to test on. Must be a Column expression. |
value |
result expression. |
when since 1.5.0
Other normal_funcs: Column-class,
column, column,
column,
column,character-method,
column,jobj-method; abs,
abs,Column-method;
bitwiseNOT, bitwiseNOT,
bitwiseNOT,Column-method;
coalesce, coalesce,
coalesce,
coalesce,Column-method,
coalesce,SparkDataFrame-method;
expr, expr,
expr,character-method;
from_json, from_json,
from_json,Column,structType-method;
greatest, greatest,
greatest,Column-method;
ifelse, ifelse,Column-method;
is.nan, is.nan,Column-method,
isnan, isnan,
isnan,Column-method; least,
least, least,Column-method;
lit, lit,
lit,ANY-method; nanvl,
nanvl, nanvl,Column-method;
negate, negate,
negate,Column-method; randn,
randn, randn,
randn,missing-method,
randn,numeric-method; rand,
rand, rand,
rand,missing-method,
rand,numeric-method; struct,
struct,
struct,characterOrColumn-method;
to_json, to_json,
to_json,Column-method
## Not run: when(df$age == 2, df$age + 1)