16 lines
229 B
ObjectPascal
16 lines
229 B
ObjectPascal
// GroupBy + Count
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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.GroupBy('age').Count.Print;
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end. |