Primi 10 valori in molte colonneHo una tabella di dati con poche migliaia di colonne. Sto cercando di trovare il numero "X" superiore di valori in quelle colonne, da un'altra variabile. Ad esempio, voglio conoscere le colonne con i 10 valori più alti, quando un'altra colonna ha un valore di "Large Cap Stocks".
Automazione e scriptingEsplorazione e visualizzazione dei datifinestreRe: Primi 10 valori in molte colonneSenza avere alcuna idea dei tuoi dati, potrebbe essere più semplice impilare prima i tuoi dati e poi scegliere i primi 10 valori.
Re: Primi 10 valori in molte colonneHo allegato un esempio di un piccolo insieme dei miei dati.
Re: Primi 10 valori in molte colonneEcco un modo per farlo con una sola colonna. Potresti metterlo in un ciclo per ciascuna delle tue colonne. Questo post ha più sfondo.
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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 );
Re: I primi 10 valori in molte colonneWow, Loc(Ranking... ) è fantastico! Molto utile!
Ho appena letto la domanda e mi sono chiesto
@dkraeuter_sunne ha scritto:
le colonne con i 10 valori più alti
- per ogni riga?
Allora potrebbe essere
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 );
)
);
"Colonna 27" e seguenti hanno molti valori mancanti. Devono essere inclusi nell'analisi?
