2b24ccefa0
parameter validation checks & tests for errors
2015-01-03 13:15:42 -08:00
085d677ea2
add class_weight to trees, expand tests & minor refactor
2014-12-22 16:50:58 -08:00
089d2f7779
TST add a toy test for min_weight_samples_leaf
2014-11-26 11:03:37 +01:00
0bc8a986d0
FIX+ENH add min_weight_fraction_split support for sparse splitter
2014-11-06 13:58:28 +01:00
c03c01a504
ENH Bring sparse input support to tree-based methods
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Author: Arnaud Joly <arnaud.v.joly@gmail.com>
Fares Hedayati <fares.hedayati@gmail.com>
2014-11-06 13:58:28 +01:00
2181f7c3ec
TST more robust test for MemoryError from Tree._resize
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Fixes #3686 .
2014-09-22 16:59:04 +02:00
5335539d95
FIX propagate MemoryError from Tree._resize
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Fixes #3684 . "except *" declaration was ignored because it was missing
from the .pxd file.
2014-09-22 14:22:46 +02:00
79d965afcc
min_weight_fraction: comments and pep8
2014-07-02 11:47:32 +02:00
39f831d466
utils.testing: add assert_greater_equal and assert_less_equal
2014-07-02 11:47:32 +02:00
d72f958596
min_weight_fraction_leaf and min_samples_leaf: test both best-first and depth-first tree building
2014-07-02 11:47:31 +02:00
7e9c093585
tree: add min_weight_fraction_leaf
2014-07-02 11:47:31 +02:00
ad3156dd7c
TST reduce max_depth for numerical stability
2014-06-08 17:56:20 +02:00
bb0689f525
ENH: make trees work with very small max_features.
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Trees do no longer fail if int(max_features*n_features) == 0, but use
max_features=1 if the max_features paramater was larger than 0.0
Fixes #3171 .
2014-06-01 16:34:37 +02:00
65bb024f95
FIX MemoryError raising in trees (+test)
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I got this wrong all along: Cython functions that don't return Python
objects need an "except" clause to actually propagate exceptions (spotted
by @GaelVaroquaux, @arjoly).
Simplified memory management and unified error messages by safe_realloc.
2014-05-05 19:44:31 +02:00
61dd4b4be9
FIX: weight impurity improvement by the size of the node
2014-04-12 10:33:04 +02:00
da95ad8a65
FIX: Set correct impurity values in BestFirstBuilder
2014-04-10 20:27:37 +02:00
269afc10fd
FIX numerical stability issues on 32 bit platform
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The gini index and the mean square error (variance) might differ due
to numerical instability. Since those instabilities mainly occurs at
high tree depth, we restrict the maximal depth.
2014-04-04 10:15:15 +02:00
b97fb3c5fc
MAINT drop support for NumPy < 1.6.1
2014-03-02 20:13:57 +01:00
5f027f3e6d
FIX error message from trees for large inputs
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Fixes #2809 (hopefully).
2014-02-15 17:22:16 +01:00
e368d9a53e
TST add tests with constant features
2014-02-13 11:29:17 +01:00
e7e7133912
ENH/FIX Change Tree underlying data structure
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* avoid segfault (#2726 ) by setting base on numpy arrays
* A struct array for tree nodes and values array (size indeterminate at
compile time) are the only underlying structure, so each node is locally
grouped memory, and joblib dumps will save only two numpy files per
tree.
* predict() uses the value array's take method, reducing code repetition
2014-01-16 09:32:16 +11:00
260bdb9d9e
TST Gini is equivalent to mse in binary classification
2014-01-13 17:13:48 +01:00
5847006f11
COSMIT get rid of deprecation warning in tree tests
2014-01-11 12:51:15 +01:00
834b3754c2
uses raises instead of with assert_raises - apparently doesn't work on python3 nose version.
2014-01-08 16:30:45 +01:00
792a09c0d7
better test coverage in tree module
2014-01-08 14:14:06 +01:00
73c7de32e2
cosmit: better exception
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remove troublesome 32bit test
2014-01-08 12:10:05 +01:00
1b8ea52741
max_leaf_nodes has precedence over max_depth if the former is not None.
2013-12-02 20:13:57 +01:00
722afb2cdb
TEST: disable test_32bit_equality
2013-11-29 14:12:02 +01:00
9f23eb76f4
update test (slight changes in tree output because of removal of EPSILON insensitive checks)
2013-11-22 17:56:09 +01:00
3f0c3f076c
check value of max_leaf_nodes
2013-11-03 16:07:57 +02:00
173f6e477b
fix: test renamed and check only on nr of leafs.
2013-11-03 12:50:45 +02:00
e9cea77bd8
PriorityQueue for best-first tree growing
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max_leaf_nodes instead of complete parameter
2013-11-03 09:40:24 +02:00
d7e5802037
add tests for complete
2013-11-02 11:36:19 +02:00
7d9984b995
Merge pull request #2442 from glouppe/tree-shuffle
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[MRG] Trees: random features selection is biased
2013-09-24 13:38:37 -07:00
f92c734970
TEST: add tests for splitter="presort-best"
2013-09-23 09:43:22 +02:00
2d16aee90e
FIX: use XorShift random number generator
2013-09-22 19:36:09 +02:00
9c07ca32b9
FIX: module RAND_R_MAX
2013-09-22 19:35:39 +02:00
dc36bf3dc0
FIX: random number generator
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FIX: address @larsmans + @ogrisel comments
ENH: add INT32_t type
ENH: rename INT32_t to UINT32_t
FIX: modulo RAND_R_MAX+1
FIX: broken tests
2013-09-22 19:35:18 +02:00
7551a82e89
ENH reduce memory overhead of storing tree ensemble
2013-09-12 14:25:49 +02:00
33507a1f3d
fix line endings and visual indents
2013-08-31 12:25:15 +05:30
e3a764db5e
FIX backward compatibility was broken
2013-07-29 03:06:58 +02:00
572600b75b
added 32bit 64bit equality test case
2013-07-27 13:45:33 +02:00
e488704849
COSMIT pep8
2013-07-23 15:17:32 +02:00
73e24d2193
TST remove unused tests
2013-07-22 17:43:14 +02:00
5fafad9274
TST max_features for more tree estimators
2013-07-22 17:43:14 +02:00
a9354a6b19
MAINT Set random_state, modernize tests
2013-07-22 17:43:14 +02:00
0c6c7731bc
FIX: remove debug message
2013-07-22 14:23:09 +02:00
8f9f2e41bd
WIP: better check inputs
2013-07-22 12:20:02 +02:00
4e4316c022
TEST: add test_memory_layout
2013-07-22 12:20:02 +02:00
3f540dafa6
WIP: small optimizations
2013-07-22 12:19:58 +02:00
trevorstephens