# update numeric values of list with new values...

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## update numeric values of list with new values...

 Suppose I have the following: test <- list(a=1,b=2,c=3) I also have a vector (or list, or something else...) with new numbers new <- c(4,5,6) What I'm trying to figure out is how to take the list, and update the numbers from {1,2,3} to {4,5,6} So, in the end,I want the 'update' test list to look like (a=4,a=5,a=6) I tried a bunch of obvious things I know about 'replacing' things (without success), but the problem in this instance seems to be the fact that the list contains elements that are expressions (a=1, a=2,...), while the new vector is simply a set of numbers. So, I want to change the numbers in the list, but retain the character parts of the expressions in the list (I need to have the list of expressions as is for other purposes). Doable? Thanks in advance... ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.
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## Re: update numeric values of list with new values...

 Solved it: test <- list(a=1,b=2,c=3) new <- c(4,5,6) hold <- as.list(new) updated_test <- replace(test,c(1:3),hold) \$a [1] 4 \$b [1] 5 \$c [1] 6 mean.parms <- as.list(mean.parms) mm.parms <- replace(far.parms,c(1:length(far.parms)),mean.parms) On 9/22/2017 10:34 AM, Evan Cooch wrote: > Suppose I have the following: > > test <- list(a=1,b=2,c=3) > > I also have a vector (or list, or something else...) with new numbers > > new <- c(4,5,6) > > What I'm trying to figure out is how to take the list, and update the > numbers from {1,2,3} to {4,5,6} > > So, in the end,I want the 'update' test list to look like > > (a=4,a=5,a=6) > > I tried a bunch of obvious things I know about 'replacing' things > (without success), but the problem in this instance seems to be the > fact that the list contains elements that are expressions (a=1, > a=2,...), while the new vector is simply a set of numbers. > > So, I want to change the numbers in the list, but retain the character > parts of the expressions in the list (I need to have the list of > expressions as is for other purposes). > > Doable? > > Thanks in advance... > > ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.