dplyr summarise_each 与 na.rm [英] dplyr summarise_each with na.rm

问题描述

有没有办法指示dplyr 使用summarise_each 和na.rm=TRUE?我想用 summarise_each("mean") 取变量的平均值，但我不知道如何指定它来忽略缺失值.

Is there a way to instruct dplyr to use summarise_each with na.rm=TRUE? I would like to take the mean of variables with summarise_each("mean") but I don't know how to specify it to ignore missing values.

推荐答案

按照文档中的链接，您似乎可以使用 funs(mean(., na.rm = TRUE)):

Following the links in the doc, it seems you can use funs(mean(., na.rm = TRUE)):

library(dplyr)
by_species <- iris %>% group_by(Species)
by_species %>% summarise_each(funs(mean(., na.rm = TRUE)))

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