18 lines
330 B
ObjectPascal
18 lines
330 B
ObjectPascal
// Сортировка по нескольким полям
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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.Filter(r -> r.IsValid('score'))
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.SortBy(['age','score'],[True,True])
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.Println;
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end. |