[R] How to access data structure (List of List)

[Gundala Viswanath]

Hi,

I have this kind of output.

> str(nw)
List of 3
 $ :List of 2
  ..$ part1: num 30.9
  ..$ part2: num [1:78] 60.1 70.0 73.0 75.0 83.9 ...
 $ :List of 2
  ..$ part1: num [1:2] 30.9 60.1
  ..$ part2: num [1:77] 70.0 73.0 75.0 83.9 93.1 ...
 $ :List of 2
  ..$ part1: num [1:3] 30.9 60.1 70
  ..$ part2: num [1:76] 73.0 75.0 83.9 93.1 97.6 ...

My question are:

1. What kind of data structure is it? List of List?
2. How can I access it's element?

I tried the following loop but seem to fail

for (i in 1:length(nw)) {
    print(nw[i]$part1)
}

Please advice.
- Gundala Viswanath
Jakarta - Indonesia