quaquel / EMAworkbench / 20555354788

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master: 93%

Pull #440

github

parcoords.py: Fix get_limits compatibility with pandas 3.0 string dtype

Pandas 3.0 now infers string columns as the dedicated string dtype instead of object dtype by default. This caused get_limits() to fail recognizing categorical columns, returning individual values instead of sets of unique values.

The fix adds a check for string dtype using pd.api.types.is_string_dtype() alongside the existing object dtype check, ensuring categorical/string columns are properly handled regardless of pandas version.

Fixes test failures in test_get_limits and test_plot when using pandas 3.0.0rc1 (--pre flag).

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