更改R中列表的层次结构 [英] change the hierarchy of a list in R
本文介绍了更改R中列表的层次结构的处理方法,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
我有这样的清单,
myList <- lapply(unique(diamonds$cut), function(x){
lst <- lapply(unique(diamonds$color), function(y){
dta <- diamonds[diamonds$cut == x & diamonds$color == y, ]
lm(price ~ carat, data = dta)
})
names(lst) <- unique(diamonds$color)
return(lst)
})
names(myList) <- unique(diamonds$cut)
结构是
> str(myList, max.level=2)
List of 5
$ Ideal :List of 7
..$ E:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ I:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ J:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ H:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ F:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ G:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ D:List of 12
.. ..- attr(*, "class")= chr "lm"
$ Premium :List of 7
..$ E:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ I:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ J:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ H:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ F:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ G:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ D:List of 12
.. ..- attr(*, "class")= chr "lm"
$ Good :List of 7
..$ E:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ I:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ J:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ H:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ F:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ G:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ D:List of 12
.. ..- attr(*, "class")= chr "lm"
$ Very Good:List of 7
..$ E:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ I:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ J:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ H:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ F:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ G:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ D:List of 12
.. ..- attr(*, "class")= chr "lm"
$ Fair :List of 7
..$ E:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ I:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ J:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ H:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ F:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ G:List of 12
.. ..- attr(*, "class")= chr "lm"
..$ D:List of 12
.. ..- attr(*, "class")= chr "lm"
我想在具有myList
之后对其进行重组,以使每个color
都位于cut
之前.我无法更改创建myList
的代码. myList
生成后,我必须这样做.一些帮助.
I want to restructure this after having myList
so that Each color
will comes before cut
. I can not change the code that creates myList
. I have to do it after myList
is generated. Some Help plz.
推荐答案
这可能并不理想,但是只要列表结构是常规的,就可以使用嵌套的for循环:
It might not be ideal, but as long as the list structure is regular, you could use a nested for loop:
# get names of inner and outer lists
innerNames <- names(myList[[1]])
outerNames <- names(myList)
# creat new blank list
myList2 <- list()
# restructure
for(i in innerNames) {
for(j in outerNames)
if(j == outerNames[1]) myList2[[i]] <- myList[[j]][i]
else myList2[[i]] <- c(myList2[[i]], myList[[j]][i])
}
}
这篇关于更改R中列表的层次结构的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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