[R] turning list into vector/dataframe

[baptiste auguie]

try this,

do.call(rbind, resample2)

#or simply,

replicate(1000, Cusum(sample(lambs,replace=F)))

you could also look at the plyr package.


Hope this helps,

baptiste

On 10 Apr 2009, at 09:03, Melissa2k9 wrote:

>
> Hi,
>
> I have used this command :
>
> resamples<-lapply(1:1000,function(i) sample(lambs,replace=F))
> resamples2<-lapply(resamples,Cusum)
>
> to get a list of 1000 samples of my data. The function Cumsum is  
> defined as
> follows:
>
> Cusum<-function(x){
> SUM<-cumsum(x)-(1:length(x))*mean(x)
> min<-min(cumsum(x)-(1:length(x))*mean(x))
> max<-max(cumsum(x)-(1:length(x))*mean(x))
> diff<-max-min
> ans<-c(min,max,diff)
> ans
> }
>
>
> where lambs is a vector of temperatures.
>
> An example of part of my list is:
>
> [[998]]
> [1] -5.233176  6.903034 12.136210
>
> [[999]]
> [1] -9.296690  1.516233 10.812922
>
> [[1000]]
> [1] -1.502066e+01 -4.547474e-13  1.502066e+01
>
> Now I want to convert this list into a dataframe so for example 1000  
> rows
> with col names Min, Max and Diff. My supervisor said I first had to  
> turn
> this into a vector but I don't seem to be able to do that!
>
> Any ideas on how to turn this list into a dataframe would be really
> appreciated :) Thanks in advance
>
> Melissa
> -- 
> View this message in context: http://www.nabble.com/turning-list-into-vector-dataframe-tp22984623p22984623.html
> Sent from the R help mailing list archive at Nabble.com.
>
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_____________________________

Baptiste Auguié

School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag