Maybe something along the following lines?
m <- rep(list(rnorm(10)),3) # dummy data
data <- c()
for (a in 1:length(m)) {
data[a] <- m[[a]][1] }
Muhammad
On Tue, Oct 16, 2012 at 1:17 PM, Balqis <aehan3...@gmail.com> wrote:
> Hi all,
>
> I have a list of 20000 data, and the list look like below. I wonder what is
> the simplest way to extract 'kappa' value (or 'xi' or 'alpha' for the
> matter) from each of the data. How can I simply code it without having to
> change the list to a dataframe first? Many thanks!
>
>
> $X19997
> xi alpha kappa
> 784.7718640 165.4065141 -0.2709599
>
> $X19998
> xi alpha kappa
> 860.7832604 215.1144980 -0.1769741
>
> $X19999
> xi alpha kappa
> 839.7692675 196.0103874 -0.3848809
>
> $X20000
> xi alpha kappa
> 847.6117040 212.3279185 -0.2576029
>
> regards,
> aehan
>
> [[alternative HTML version deleted]]
>
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>
--
Muhammad Rahiz
(za) +27 071 719 0104
(skype) muhammad.rahiz
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