本文介绍了根据逗号将 data.frame 行拆分为多行的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我试图根据字符序列,"在 data.frame 中拆分一行.举个例子:
I am attempting to split a row in a data.frame based on the character sequence ", ". Here's an example:
mydat <- data.frame(v1 = c("name, name2", "name3", "name4, name5"), v2 = c("1, 2", "3", "4, 5"), v3 = c(1, 2, 3))我最终想要的是一个 data.frame 像这样:
What I would like to end up with is a data.frame like so:
v1 v2 v3 name 1 1 name2 2 1 name3 3 2 name4 4 2 name5 5 3有什么建议吗?
推荐答案这应该可行.
install.packages("splitstackshape") library(splitstackshape) out <- concat.split.multiple(mydat, c("v1","v2"), seps=",", "long") out v1 v2 v3 1: name 1 1 2: name2 2 1 3: name3 3 2 4: name4 4 3 5: name5 5 3更多推荐
根据逗号将 data.frame 行拆分为多行
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