수천 개의 열이 있는 데이터 테이블이 있습니다. 다른 변수로 해당 열에서 상위 "X"개의 값을 찾고 있습니다. 예를 들어 다른 열에 "Large Cap Stocks" 값이 있을 때 가장 높은 값이 10개 있는 열을 알고 싶습니다.
데이터에 대한 개념 없이 먼저 데이터를 쌓은 다음 상위 10개 값을 선택하는 것이 가장 쉬울 수 있습니다.
다음은 단 하나의 열로 수행하는 방법입니다. 이것을 각 열에 대한 루프에 넣을 수 있습니다. 이 게시물 더 많은 배경이 있습니다.
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//init
n = N Rows();
lstCategories = Associative Array( :Stock Type << Get Values ) << Get Keys;
lstRows = {};
dt = Current Data Table();
dt << Clear Column Selection;
dt << Clear Select;
//loop through each category for first column; save top 10 for each category into lstRows
For Each( {i}, lstCategories,
dt << Select Where( :Stock Type != i );
dt << Hide and Exclude;
dt << Clear Select;
dt << select rows( Loc( Ranking( :"Value 1"n[1 :: n] ) >= n - 10 ) );
t = As List( dt << Get Selected Rows );
Show( i );
Show( t );
dt << Clear Row States;
Insert Into( lstRows, t );
);
//do something with the rows
dt << Select Rows( lstRows );
와우, Loc(순위...)가 훌륭하네요! 정말 유용하네요!
방금 질문을 읽고 궁금했어요.
@dkraeuter_sunne 님 이 썼습니다:
가장 높은 값 10개가 있는 열
- 각 행마다?
그러면 그럴 수도 있겠다
dt = Current Data Table();
nc = N Cols();
Row() = 4;
For Each Row(
If( :Stock Type == "Large Cap Stock",
mx = Max( dt[Row(), 2 :: nc] );
colnumbers = Loc( Ranking( mx - dt[Row(), 2 :: nc] ) <= 10 );
colnames = Transform Each( {col}, As List( colnumbers ), Column( col + 1 ) << get name );
Print( Row(), colnames );
)
);
"열 27"과 그 이하에는 누락된 값이 많습니다. 분석에 포함해야 합니까?
