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## What changes were proposed in this pull request? This PR continues the work in #11486 from yinxusen with some code refactoring. In R package e1071, `naiveBayes` supports both categorical (Bernoulli) and continuous features (Gaussian), while in MLlib we support Bernoulli and multinomial. This PR implements the common subset: Bernoulli. I moved the implementation out from SparkRWrappers to NaiveBayesWrapper to make it easier to read. Argument names, default values, and summary now match e1071's naiveBayes. I removed the preprocess part that omit NA values because we don't know which columns to process. ## How was this patch tested? Test against output from R package e1071's naiveBayes. cc: yanboliang yinxusen Closes #11486 Author: Xusen Yin <yinxusen@gmail.com> Author: Xiangrui Meng <meng@databricks.com> Closes #11890 from mengxr/SPARK-13449. |
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