h2o (version 3.10.5.2)

h2o.distance: Compute a pairwise distance measure between all rows of two numeric H2OFrames.

Description

Compute a pairwise distance measure between all rows of two numeric H2OFrames.

Usage

h2o.distance(x, y, measure)

Arguments

x

An H2OFrame object (large, references).

y

An H2OFrame object (small, queries).

measure

An optional string indicating what distance measure to use. Must be one of: "l1" - Absolute distance (L1-norm, >=0) "l2" - Euclidean distance (L2-norm, >=0) "cosine" - Cosine similarity (-1...1) "cosine_sq" - Squared Cosine similarity (0...1)

Examples

h2o.init()
prosPath <- system.file("extdata", "prostate.csv", package="h2o")
prostate.hex <- h2o.uploadFile(path = prosPath)
h2o.distance(prostate.hex[11:30,], prostate.hex[1:10,], "cosine")