21 lines
369 B
ObjectPascal
21 lines
369 B
ObjectPascal
// Полный аналитический сценарий
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uses DataFrameABC;
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begin
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var df := DataFrame.FromCsvText('''
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name,age,score
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Alice,20,85
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Bob,22,90
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Charlie,21,78
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Bob,22,90
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Clara,,78
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Kat,21,NA
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''');
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df
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.Filter(r -> r.IsValid('score'))
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.SortBy('age', descending := True)
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.GroupBy('age')
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.Mean('score')
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.PrintPreview(3);
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end. |