entropy normalization arg

[ritchie46]

closes #3345

[codecov-commenter]

Codecov Report

Merging #3369 (5c64011) into master (7166080) will increase coverage by 0.01%.
The diff coverage is 87.50%.

❗ Current head 5c64011 differs from pull request most recent head bdedaf0. Consider uploading reports for the commit bdedaf0 to get more accurate results

@@            Coverage Diff             @@
##           master    #3369      +/-   ##
==========================================
+ Coverage   77.41%   77.43%   +0.01%     
==========================================
  Files         393      393              
  Lines       68343    68346       +3     
==========================================
+ Hits        52910    52921      +11     
+ Misses      15433    15425       -8     

Impacted Files	Coverage Δ
py-polars/polars/internals/series.py	95.65% <50.00%> (ø)
polars/polars-core/src/series/ops/log.rs	79.41% <87.50%> (-1.24%)	⬇️
polars/polars-lazy/src/dsl/mod.rs	90.93% <100.00%> (ø)
py-polars/polars/internals/expr.py	95.12% <100.00%> (ø)
py-polars/src/lazy/dsl.rs	90.50% <100.00%> (ø)
py-polars/polars/testing.py	98.00% <0.00%> (-2.00%)	⬇️
polars/polars-lazy/src/logical_plan/aexpr.rs	80.72% <0.00%> (-0.61%)	⬇️
...src/physical_plan/executors/groupby_partitioned.rs	88.42% <0.00%> (-0.53%)	⬇️
polars/polars-lazy/src/utils.rs	80.95% <0.00%> (-0.37%)	⬇️
...olars/polars-core/src/frame/groupby/into_groups.rs	53.84% <0.00%> (-0.37%)	⬇️
... and 11 more

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