[R] creating list of lists
Maas James Dr (MED)
J.Maas at uea.ac.uk
Sat Mar 12 14:32:47 CET 2011
Question 1:
I have a long list of variable names such as
first <- c("one","two","three")
and what I want to do is create a list of lists ... where the names of each of overall lists components are "one","two", and "three".
This is the same result as
second <- list(one=list(),two=list(),three=list())
Is there a way to exploit lapply to convert a list such as first to a list of empty lists such as second?
Question 2:
In a parallel routine using foreach and doMPI have to put calcualted values into a list of lists such as
list(one=one,
two=two,
three=three)
It uses the same (large) list of variable names as first in question 1. Is there a simpler way to accomplish this with a lapply statement?
I've tried several permutations but no luck! Thanks a bunch.
Jim
===============================
Dr. Jim Maas
University of East Anglia
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