R:将工作区中的所有 data.frames 保存到单独的 .RData 文件中 [英] R: Save all data.frames in workspace to separate .RData files

问题描述

我有几个 data.frames 在我想保存到单独的 .RData 文件的环境中.有没有可以保存到整个工作区的功能?

I have several data.frames in an environment which I would like to save into separate .RData files. Is there a function which is able to save to whole workspace?

我通常只使用以下函数:

I usually just do this with the following function:

save(x, file = "xy.RData")

但是有没有一种方法可以一次单独保存所有 data.frames?

but is there a way I could save all the data.frames separately at once?

推荐答案

创建一堆不同的文件并不是 save() 的矢量化方式.在这里使用循环可能更好.首先，获取所有 data.frame 名称的向量.

Creating a bunch of different files isn't how save() is vectorized. Probably better to use a loop here. First, get a vector of all of your data.frame names.

dfs<-Filter(function(x) is.data.frame(get(x)) , ls())

现在将每个写入一个文件.

Now write each to a file.

for(d in dfs) {
    save(list=d, file=paste0(d, ".RData"))
}

或者，如果您只想将它​​们全部放在一个文件中

Or if you just wanted them all in one file

save(list=dfs, file="alldfs.RData")

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