使用 dplyr 有条件地替换列中的值 [英] Using dplyr to conditionally replace values in a column

问题描述

我有一个示例数据集，其中一列的内容有点像这样:

I have an example data set with a column that reads somewhat like this:

Candy
Sanitizer
Candy
Water
Cake
Candy
Ice Cream
Gum
Candy
Coffee

我想做的是将其替换为两个因素 - 糖果"和非糖果".我可以用 Python/Pandas 做到这一点，但似乎无法找出基于 dplyr 的解决方案.谢谢！

What I'd like to do is replace it into just two factors - "Candy" and "Non-Candy". I can do this with Python/Pandas, but can't seem to figure out a dplyr based solution. Thank you!

推荐答案

假设您的数据框是 dat 并且您的列是 var:

Assuming your data frame is dat and your column is var:

dat = dat %>% mutate(candy.flag = factor(ifelse(var == "Candy", "Candy", "Non-Candy")))

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