How to apply mean function over elements of a list in R
lapply, list, r
Solution
To get the mean of the 7th element of the list just use `mean(list[[7]])`. To get the mean of each element of the list use `lapply(list,mean)`. And it's a really bad idea to call your list `list`.
Problem
I have a list and I want to use `lapply()` to compute the mean of its elements. For example, for the seventh item of the list I have: ``` >list[[7]] [1] 1 1 1 1 1 1 1 1 1 1 ``` and my output should be: ``` > mean(temp[[7]][1:10]) [1] 1 ``` But when I use `lapply()` like below the result would be something else. What should I do? ``` > lapply(list[[7]][1:10],mean) [[1]] [1] 1 [[2]] [1] 1 . . . [[10]] [1] 1 ```