[jira] [Created] (SYSTEMML-666) Small Error in Matrix Representation on Decision Tree Docs

["Stacey Ronaghan (JIRA)" <ji...@apache.org>]

Stacey Ronaghan created SYSTEMML-666:
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             Summary: Small Error in Matrix Representation on Decision Tree Docs
                 Key: SYSTEMML-666
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-666
             Project: SystemML
          Issue Type: Bug
            Reporter: Stacey Ronaghan
            Priority: Minor


The matrix representation for the example decision tree on the [Decision Tree Documentation|http://apache.github.io/incubator-systemml/algorithms-classification.html#decision-trees] has a minor error on Row 3, Col 2. The value here should be moved to Row 3, Col 3 as it refers to the feature index for node 3. Node 2 isn't an internal node and therefore, the value at Row 3, Col 2 should be 0.

Current:
|| ||||Col 1||Col 2||Col 3||Col 4||Col 5||
|Row 1|1|2|3|6|	7|
|Row 2|1|0|1|0|	0|
|Row 3|3|5|0|0|	0|
|Row 4|1|1|2|2|1|
|Row 5|1|0|2|0|0|
|Row 6|0.45|0|2|0|0|
|Row 7| | |3| | |

Suggested:
|| ||||Col 1||Col 2||Col 3||Col 4||Col 5||
|Row 1|1|2|3|6|	7|
|Row 2|1|0|1|0|	0|
|Row 3|3|0|5|0|	0|
|Row 4|1|1|2|2|1|
|Row 5|1|0|2|0|0|
|Row 6|0.45|0|2|0|0|
|Row 7| | |3| | |



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