[MADLIB-975] Random Forest training error message

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: v1.9
• Assignee: Orhan Kislal
• Reporter: Rashmi Raghu
• Created: 09/Mar/16 01:32
• Updated: 26/Mar/16 01:00
• Resolved: 25/Mar/16 23:50

Description

Error message during RF training not interpretable. See query example below. Sample data for query sent offline.

SELECT madlib.forest_train(
'dev.training_data_take_1', --training_table_name
'dev.models_random_forest', – output_table_name,
'id', – id_col_name,
'event', – dependent_variable,
'*', – list_of_features,
'id,regionname,wellid,day', – list_of_features_to_exclude,
NULL, – grouping_cols,
100 – num_trees,
– num_random_features,
– importance,
– num_permutations,
– max_tree_depth,
– min_split,
– min_bucket,
– num_splits,
– surrogate_params,
– verbose,
– sample_ratio
);
ERROR: AttributeError: 'NoneType' object has no attribute 'sort' (plpython.c:4648)

CONTEXT: Traceback (most recent call last):

PL/Python function "forest_train", line 42, in <module>

sample_ratio

PL/Python function "forest_train", line 337, in forest_train

PL/Python function "forest_train"

• • • • • • • • • • Error **********

ERROR: AttributeError: 'NoneType' object has no attribute 'sort' (plpython.c:4648)

SQL state: XX000

Context: Traceback (most recent call last):

PL/Python function "forest_train", line 42, in <module>

sample_ratio

PL/Python function "forest_train", line 337, in forest_train

PL/Python function "forest_train"