Github user Lemonjing commented on the issue:
https://github.com/apache/spark/pull/20897
@HyukjinKwon
The description of ElementwiseProduct is obvious, and i think
"`Qu8T948*1#`" is a mistake, if not, "`Qu8T948*1#`" is a input vector and 1 is
scaling vector, and this is not a good example to express vector, even so,
there is markdown syntax error. By the way, there is no example context here,
such as "e.g."ï¼"for example" or something else.
And i have queried the history and found another evidence. Before spark
v1.6.0, this file do not have "`Qu8T948*1#`". So this maybe a mistake in one
commit at v1.6.0 and this mistake not be found or fixed across v1.6.0 to now.
...
https://github.com/apache/spark/blob/v1.4.1/docs/mllib-feature-extraction.md no
https://github.com/apache/spark/blob/v1.5.0/docs/mllib-feature-extraction.md no
https://github.com/apache/spark/blob/v1.5.2/docs/mllib-feature-extraction.md no
https://github.com/apache/spark/blob/v1.6.0/docs/mllib-feature-extraction.md yes
1.6.0 ~ 2.3.0 yes
Thanks, and hope to confirm it.
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