原文:R语言 which() 、 which.min() 、 which.max() 函数

函数 which 可以用来找到满足条件的下标,如 x lt c , , , , , , which x gt seq along x x gt 这里 seq along x 会生成由 x 的下标组成的向量 用 which.min which.max 求最小值的下标和最大值的下标,不唯一时只取第一个。如 which.min x which.max x ...

2020-02-21 20:44 0 6701 推荐指数:

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R语言|删除缺失值|na.omit(),which()函数,!is,na

dataframe <- data col <- val #删除data表里所有缺失值——na.omit() data <- na.omit(data) #选取data表中val列不含NA的行,重新赋给data——which(!is.na()) data ...

Mon Nov 15 05:21:00 CST 2021 0 3278
by which, in which, from which 语法区别

(1)Here is Beijing,where I grow up.where其实也是指代北京,不过where是在北京的意思,也就是 in Beijing(2)Here is Beijing,in which I grow up.其实which就是指代北京,也就是I grow up ...

Sat Feb 13 01:31:00 CST 2016 0 2116
ABP which was not registered.

ABP 错误: 'AoLongData.Finances.FinanceService' is waiting for the following dependencies:- Service 'A ...

Wed Dec 25 06:51:00 CST 2019 0 768
shell命令--which

shell命令--which 0、which命令的专属图床 点此快速打开文章【图床_shell命令which】 1、which命令的功能说明 ​ which 命令的作用是在 PATH 变量指定的路径中搜索某个系统命令的位置并且返回第一个搜索结果。也就是说使用 which ...

Sat Feb 22 16:00:00 CST 2020 0 1124
 
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