Richard Townsend
d23619eac2
OK, but with a lot of extra printing
2017-08-07 17:26:11 +01:00
Richard Townsend
7ba57fe6df
trees: Handling FloatAttributes.
...
This patch adds:
* Gini index and information gain ratio as
DecisionTree split options;
* handling for numeric Attributes (split point
chosen naïvely on the basis of maximum entropy);
* A couple of additional utility functions in base/
* A new dataset (see sources.txt) for testing.
Performance on Iris performs markedly without discretisation.
2014-10-26 17:40:38 +00:00
Amit Kumar Gupta
4d93b9de89
Convert remaining tests to goconvey
2014-08-23 05:22:16 +00:00
Amit Kumar Gupta
1809a8b358
RandomForest returns error when fitting data with fewer features than the RandomForest plans to use
...
- BaseClassifier Predict and Fit methods return errors
- go fmt ./...
Conflicts:
ensemble/randomforest.go
ensemble/randomforest_test.go
trees/tree_test.go
2014-08-22 13:39:29 +00:00
Amit Kumar Gupta
529b3bcaa5
Avoid renaming packages on import
2014-08-22 13:39:29 +00:00
Amit Kumar Gupta
947ee8380e
Return error instead of panicking when unable to get confusion matrix
2014-08-22 13:39:29 +00:00
Amit Kumar Gupta
14aad31821
Consistently use (t *testing.T) instead of T or testEnv
2014-08-22 08:44:41 +00:00
Amit Kumar Gupta
695aec6eb6
Favor idiomatic t.Fatalf over panic for test failures
2014-08-22 08:07:55 +00:00
Amit Kumar Gupta
45545d6ebd
Remove Println's from automated test suite since they aren't assertions
2014-08-22 07:58:01 +00:00
Amit Kumar Gupta
21bb2fc9fa
Remove redundant import renames
2014-08-22 07:21:24 +00:00
Richard Townsend
c2d040af30
trees: merge from v2-instances
2014-08-03 15:17:13 +01:00
Remo Hertig
f77c1dcde0
use multiple return values instead of an array in InstancesTrainTestSplit
2014-06-06 21:33:17 +02:00
Richard Townsend
889fec4419
Examples for RandomForest, ID3 and Random trees
2014-05-19 12:42:03 +01:00
Richard Townsend
26660e1470
Corrected a problem with pruning, actual ID3 decision tree type
...
Going to modify Bagging to select attributes on its own
2014-05-17 21:45:26 +01:00
Richard Townsend
12ace9def5
Identified source of the low accuracy
2014-05-17 20:37:19 +01:00
Richard Townsend
13c0dc3eba
Reduced-error pruning
2014-05-17 18:06:01 +01:00
Richard Townsend
db3ac3c695
ID3 algorithm working
2014-05-17 17:28:51 +01:00
Richard Townsend
cf165695c8
ChiMerge seems to improve accuracy
2014-05-17 16:20:56 +01:00
Richard Townsend
fdb67a4355
Initial work on decision trees
...
Random Forest has occasional disastrous accuracy:
never seen that happen in WEKA
2014-05-14 14:00:22 +01:00
