R 将条件语句对象调用到ifelse中
首先,我想创建一个包含条件语句的对象。然后,我想把这个语句称为ifelse。提前感谢您的帮助 例如:R 将条件语句对象调用到ifelse中,r,if-statement,R,If Statement,首先,我想创建一个包含条件语句的对象。然后,我想把这个语句称为ifelse。提前感谢您的帮助 例如: library(dplyr) dd <- iris # This code does the job but it gets messy when I have many statements dd <- dd %>% mutate(Box = ifelse(Sepal.Length > 5 & Species == "setosa
library(dplyr)
dd <- iris
# This code does the job but it gets messy when I have many statements
dd <- dd %>%
mutate(Box =
ifelse(Sepal.Length > 5 & Species == "setosa", "Box_1", NA))
# This code doesn't work but it's what I'd aim
st <- Sepal.Length > 5 & Species == "setosa"
dd <- dd %>%
mutate(Box =
ifelse(st, "Box_1", NA))
库(dplyr)
dd 5和物种==“刚毛”,“盒子1”,NA)
#这个代码不起作用,但这是我的目标
st 5和物种==“刚毛”
dd%
变异(框=
ifelse(st,“盒子1”,NA))
您可以执行类似于stSepal的操作。Length
不是现有对象<代码>dd$萼片。长度为。您可以在每一列前面加上dd$
,也可以像@Heroka所说的那样在前面加上。谢谢您的评论。Heroka,“with”工作得很好,谢谢!