How to apply mean function over elements of a list in R
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
Answer
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.