[SPARK-50948][ML][PYTHON][CONNECT] Add support for StringIndexer/PCA on Connect #49600
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…on Connect ### What changes were proposed in this pull request? This PR adds support for PCA and StringIndexer on Connect: ### Why are the changes needed? for feature parity ### Does this PR introduce _any_ user-facing change? yes, new algorithms supported on connect ### How was this patch tested? The newly added tests pass ### Was this patch authored or co-authored using generative AI tooling? No Closes #49600 from wbo4958/string_indexer_pca. Authored-by: Bobby Wang <wbo4958@gmail.com> Signed-off-by: Ruifeng Zheng <ruifengz@apache.org> (cherry picked from commit 6658846) Signed-off-by: Ruifeng Zheng <ruifengz@apache.org>
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…on Connect ### What changes were proposed in this pull request? This PR adds support for PCA and StringIndexer on Connect: ### Why are the changes needed? for feature parity ### Does this PR introduce _any_ user-facing change? yes, new algorithms supported on connect ### How was this patch tested? The newly added tests pass ### Was this patch authored or co-authored using generative AI tooling? No Closes apache#49600 from wbo4958/string_indexer_pca. Authored-by: Bobby Wang <wbo4958@gmail.com> Signed-off-by: Ruifeng Zheng <ruifengz@apache.org> (cherry picked from commit 248687a) Signed-off-by: Ruifeng Zheng <ruifengz@apache.org>
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What changes were proposed in this pull request?
This PR adds support for PCA and StringIndexer on Connect:
Why are the changes needed?
for feature parity
Does this PR introduce any user-facing change?
yes, new algorithms supported on connect
How was this patch tested?
The newly added tests pass
Was this patch authored or co-authored using generative AI tooling?
No