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lag(input[, offset[, default]]) – Returns the value of `input` at the `offset`th row before the

last(expr[, isIgnoreNull]) – Returns the last value of `expr` for a group of rows. If

last_day(date) – Returns the last day of the month which the date belongs to. Platforms:

kpa_predict(@Nonnull double xh, @Nonnull double xk, @Nullable float w0, @Nonnull float w1, @Nonnull float w2,

kurtosis(expr) – Returns the kurtosis value calculated from values of a group. Platforms: WhereOS, Spark,

l1_normalize(ftvec string) – Returned a L1 normalized value Platforms: WhereOS, Spark, Hive Class: hivemall.ftvec.scaling.L1NormalizationUDF More