Select

可用，但與 .wl 參考有差異

Picks elements of a list that satisfy a criterion.

形式

Select[data, crit]

Select[data, crit -> prop]

Select[data, crit, n]

Select[crit]

已驗證的範例Select[{1, 2, 3, 4}, EvenQ] → {2, 4}

在 Qurak 上執行搜尋參考文件

使用於

Create tables of results in parallel - 2 個步驟
Replace or remove invalid or missing data - 23 個步驟

主題

Associations - Functions That Apply to Values »
Computation With Structured Datasets - Selections and Transformations
Conditionals - List-Based Conditionals »
Database Like Operations On Datasets - General
Elements Of Lists - Finding Sublists
Function Composition And Operator Forms - Functions with Operator Forms

相關

SelectFirst Discard Cases Take Drop Reap Pick GatherBy GroupBy MatchQ StringMatchQ FreeQ

全部 6300 個函式 · 從 MCP 用戶端使用這個