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| author | Yanbo Liang <ybliang8@gmail.com> | 2015-11-23 11:51:29 -0800 |
|---|---|---|
| committer | Joseph K. Bradley <joseph@databricks.com> | 2015-11-23 11:51:29 -0800 |
| commit | 98d7ec7df4bb115dbd84cb9acd744b6c8abfebd5 (patch) | |
| tree | 1c9f2845324f06519e5f42a0559873d2041fae0e /bagel | |
| parent | 5231cd5acaae69d735ba3209531705cc222f3cfb (diff) | |
| download | spark-98d7ec7df4bb115dbd84cb9acd744b6c8abfebd5.tar.gz spark-98d7ec7df4bb115dbd84cb9acd744b6c8abfebd5.tar.bz2 spark-98d7ec7df4bb115dbd84cb9acd744b6c8abfebd5.zip | |
[SPARK-11920][ML][DOC] ML LinearRegression should use correct dataset in examples and user guide doc
ML ```LinearRegression``` use ```data/mllib/sample_libsvm_data.txt``` as dataset in examples and user guide doc, but it's actually classification dataset rather than regression dataset. We should use ```data/mllib/sample_linear_regression_data.txt``` instead.
The deeper causes is that ```LinearRegression``` with "normal" solver can not solve this dataset correctly, may be due to the ill condition and unreasonable label. This issue has been reported at [SPARK-11918](https://issues.apache.org/jira/browse/SPARK-11918).
It will confuse users if they run the example code but get exception, so we should make this change which can clearly illustrate the usage of ```LinearRegression``` algorithm.
Author: Yanbo Liang <ybliang8@gmail.com>
Closes #9905 from yanboliang/spark-11920.
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