slice(x, start, length) – Subsets array x starting from index start (array indices start at

smallint(expr) – Casts the value `expr` to the target data type `smallint`. Platforms: WhereOS, Spark,

snr(array features, array one-hot class label) – Returns Signal Noise Ratio for each feature as

sketch_hashes(x) – Return the MD5 hashes associated with a KMV sketch set of strings Platforms:

sketch_set(x) – Constructs a sketch set to estimate reach for large values Platforms: WhereOS, Spark,

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