[SPARK-26153][ML] GBT & RandomForest avoid unnecessary first job to compute numFeatures
#23123
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Test build #99208 has finished for PR 23123 at commit
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srowen
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Nov 26, 2018
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jackylee-ch
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Feb 18, 2019
… compute `numFeatures` ## What changes were proposed in this pull request? use base models' `numFeature` instead of `first` job ## How was this patch tested? existing tests Closes apache#23123 from zhengruifeng/avoid_first_job. Authored-by: zhengruifeng <[email protected]> Signed-off-by: Sean Owen <[email protected]>
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What changes were proposed in this pull request?
use base models'
numFeatureinstead offirstjobHow was this patch tested?
existing tests