Fix ChainedAssignmentError in warm_start_from_old_experiment #4799
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…k#4799) Summary: Pandas 3.0 introduced Copy-on-Write (CoW) which makes chained assignment with `inplace=True` ineffective. The pattern `df["col"].replace(..., inplace=True)` no longer modifies the original DataFrame because the column selection creates a copy. Replace the chained `inplace=True` pattern with explicit assignment: - `df["col"].replace(..., inplace=True)` → `df["col"] = df["col"].replace(...)` This eliminates the `ChainedAssignmentError` warning and ensures the DataFrame is actually modified as intended. Differential Revision: D91187974
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…k#4799) Summary: Pandas 3.0 introduced Copy-on-Write (CoW) which makes chained assignment with `inplace=True` ineffective. The pattern `df["col"].replace(..., inplace=True)` no longer modifies the original DataFrame because the column selection creates a copy. Replace the chained `inplace=True` pattern with explicit assignment: - `df["col"].replace(..., inplace=True)` → `df["col"] = df["col"].replace(...)` This eliminates the `ChainedAssignmentError` warning and ensures the DataFrame is actually modified as intended. Differential Revision: D91187974
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…k#4799) Summary: Pandas 3.0 introduced Copy-on-Write (CoW) which makes chained assignment with `inplace=True` ineffective. The pattern `df["col"].replace(..., inplace=True)` no longer modifies the original DataFrame because the column selection creates a copy. Replace the chained `inplace=True` pattern with explicit assignment: - `df["col"].replace(..., inplace=True)` → `df["col"] = df["col"].replace(...)` This eliminates the `ChainedAssignmentError` warning and ensures the DataFrame is actually modified as intended. Differential Revision: D91187974
…k#4799) Summary: Pandas 3.0 introduced Copy-on-Write (CoW) which makes chained assignment with `inplace=True` ineffective. The pattern `df["col"].replace(..., inplace=True)` no longer modifies the original DataFrame because the column selection creates a copy. Replace the chained `inplace=True` pattern with explicit assignment: - `df["col"].replace(..., inplace=True)` → `df["col"] = df["col"].replace(...)` This eliminates the `ChainedAssignmentError` warning and ensures the DataFrame is actually modified as intended. Differential Revision: D91187974
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…k#4799) Summary: Pandas 3.0 introduced Copy-on-Write (CoW) which makes chained assignment with `inplace=True` ineffective. The pattern `df["col"].replace(..., inplace=True)` no longer modifies the original DataFrame because the column selection creates a copy. Replace the chained `inplace=True` pattern with explicit assignment: - `df["col"].replace(..., inplace=True)` → `df["col"] = df["col"].replace(...)` This eliminates the `ChainedAssignmentError` warning and ensures the DataFrame is actually modified as intended. Differential Revision: D91187974
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Summary:
Pandas 3.0 introduced Copy-on-Write (CoW) which makes chained assignment with
inplace=Trueineffective. The patterndf["col"].replace(..., inplace=True)no longer modifies the original DataFrame because the column selection creates a copy.Replace the chained
inplace=Truepattern with explicit assignment:df["col"].replace(..., inplace=True)→df["col"] = df["col"].replace(...)This eliminates the
ChainedAssignmentErrorwarning and ensures the DataFrame is actually modified as intended.Differential Revision: D91187974