[R] flatten a list to a "true" list
Christian Hoffmann
christian.hoffmann at wsl.ch
Tue May 23 14:11:01 CEST 2006
Hi,
I want to flatten a list:
"flatten"(list(a=1,b=2),list(c=3,d=4)) -> L <- list(a=1,b=2,c=3,d=4)
which is
> L
$a
[1] 1
$b
[1] 2
$c
[1] 3
$d
[1] 4
> L[1]
$a
[1] 1
> L[[1]]
[1] 1
What I used so far is
M <- unlist(c(list(a=1,b=2),list(c=3,d=4))), but this gives
> M
a b c d
1 2 3 4
> M[1]
a
1
> M[[1]]
[1] 1
This shows that L has named "components", but L is a named vector.
What would be the functions
L <- F1(M)
M <- F2(L)
like?
Generally:
Flatten a tree down to level "n", where level 0 is the root.
I searched the net under "flatten", but it showed only unlist.
Thanks for help
Christian
--
Dr. Christian W. Hoffmann,
Swiss Federal Research Institute WSL
Mathematics + Statistical Computing
Zuercherstrasse 111
CH-8903 Birmensdorf, Switzerland
Tel +41-44-7392-277 (office) -111(exchange)
Fax +41-44-7392-215 (fax)
christian.hoffmann at wsl.ch
http://www.wsl.ch/staff/christian.hoffmann
International Conference 5.-7.6.2006 Ekaterinburg Russia
"Climate changes and their impact on boreal and temperate forests"
http://ecoinf.uran.ru/conference/
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