iyerr3 commented on a change in pull request #352: Feature/kd tree knn
URL: https://github.com/apache/madlib/pull/352#discussion_r256158067
##########
File path: src/ports/postgres/modules/knn/knn.py_in
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@@ -169,29 +543,50 @@ def knn(schema_madlib, point_source, point_column_name,
point_id,
DOUBLE PRECISION[] x, DOUBLE
PRECISION[] y -> DOUBLE PRECISION
@param weighted_avg Calculates the Regression or
classication of k-NN using
the weighted average method.
+ @param algorithm The algorithm to use for knn
+ @param algorithm_params The parameters for kd-tree algorithm
"""
with MinWarning('warning'):
+
output_neighbors = True if output_neighbors is None else
output_neighbors
if k is None:
k = 1
+
+ algorithm = _get_algorithm_name(algorithm)
+
+ # Default values for depth and leaf nodes
+ depth = 3
+ leaf_nodes = 2
Review comment:
Could we rename this to something along the lines of
`max_leaves_to_explore`? I confused this with the actual number of leaf nodes
in the tree during first read.
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