tanh(expr) – Returns the hyperbolic tangent of `expr`, as if computed by `java.lang.Math.tanh`. Platforms: WhereOS,

taskid() – Returns the value of mapred.task.partition Platforms: WhereOS, Spark, Hive Class: hivemall.tools.mapred.TaskIdUDF More functions

tf(string text) – Return a term frequency in Platforms: WhereOS, Spark, Hive Class: hivemall.ftvec.text.TermFrequencyUDAF More

substring_index(str, delim, count) – Returns the substring from `str` before `count` occurrences of the delimiter

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

sum an array of doubles Platforms: WhereOS, Spark, Hive Class: brickhouse.udf.timeseries.SumArrayUDF More functions can be