DOC linked SplineTransformer to time-related feature engineering example

[scaja]

Reference Issues/PRs

issue #26927

What does this implement/fix? Explain your changes.

This PR linked SplineTransformer to time-related feature engineering example

Related Example files:

plot_cyclical_feature_engineering.py

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[adrinjalali]

This is a good example, and could be mentioned in more places since it's more on the realistic side of things.

I'd suggest having a link in ColumnTransformer, Pipeline, and TimeSeriesSplit as well.

But the description could be more informative. Something like:

Fore a more comprehensive example on a time series data est, see ...

WDYT @glemaitre

[glemaitre]

Definitely for TimeSeriesSplit. For ColumnTransformer and Pipeline, let's do it as well. We have to be careful in the future that for those two, we don't have too many examples.

[manthanindane]

I'm new here and figuring out some things.......Is this issue still open? Is anybody working on this?

[glemaitre]

@manthanindane The corresponding issue is still open here: #26927

[ogrisel]

+1 for merging this PR as such as it's already a net improvement.

[adrinjalali]

Added the link for TimeSeriesSplit, leaving the other ones alone. Feel free to merge @ogrisel or @glemaitre

[Ujjwal29]

How do we figure out which example file reference to be added in which file?

[adrinjalali]

@Ujjwal29 it's either in the docstrings of related classes (inside the .py files where they're implemented) or in the user guides (the .rst files where the user guides are written)