[问答] 一变量有很多个list，请问怎么一次性取下 [推广有奖]

11楼

xucaifeng66 发表于 2015-1-6 11:21:20

zngtian 发表于 2015-1-6 11:16
Yes, presumably. Look at the example in Data Manipulation with R by Phil Spector.

It is really quicker, in my case about 40s

12楼

曲散人终 发表于 2015-1-6 11:23:58

zngtian 发表于 2015-1-6 11:16
Yes, presumably. Look at the example in Data Manipulation with R by Phil Spector. Basicall ...

oh,I see,thank you...

13楼

zngtian 发表于 2015-1-6 11:24:27

xucaifeng66 发表于 2015-1-6 11:21
It is really quicker, in my case about 40s

It is because your function is simple.

14楼

曲散人终 发表于 2015-1-6 11:25:17

xucaifeng66 发表于 2015-1-6 11:21
It is really quicker, in my case about 40s

I think I should learn to how to use sapply and lapply too...

15楼

李会超 发表于 2015-1-6 11:25:52

library(plyr)
laply(a,function(x) x[[1]])

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