[SPARK-31659][ML][DOCS] Add VarianceThresholdSelector examples and doc #28478
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Test build #122410 has finished for PR 28478 at commit
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Test build #122411 has finished for PR 28478 at commit
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zhengruifeng
approved these changes
May 8, 2020
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Merged to master |
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Thanks! @srowen @zhengruifeng |
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What changes were proposed in this pull request?
Add VarianceThresholdSelector examples and doc
Why are the changes needed?
VarianceThresholdSelector is a new feature selector in 3.1.0. We need to add examples and doc
Does this PR introduce any user-facing change?
Yes.
add Scala, Python and Java examples for VarianceThresholdSelector. Also add doc
How was this patch tested?
Manually checked