Github user felixcheung commented on the issue: https://github.com/apache/spark/pull/13660 @NarineK That is sort of unrelated to this PR since this PR is about the programming guide? But in short, this happens because in the R code both `dapply` and `dapplyCollect` has the `@rdname` tag to "dapply". I'm not sure if we need to do that. But the first copy of "x ..." and "func ..." is from "dapply" and the second is from "dapplyCollect".
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