Dear R community
I have a problem to access particular list. I have a code given below where
there is recursive process. It is not possible to run it because there are few
other functions involved inside like sv, LN, RN etc.
k=0; n=0; variable=c(); vr<-list()
func <- function(data,testdata)
{
.
.
if(......){
n<<-n+1; vr[[n]] <<- variable; print(vr)
}else
{
k <<- k + 1; data1 = data; data2 = testdata;
s=sv(data1)[[1]]; s1=s[1]; s2=s[2]; variable[k] <<- s1
data=LN(data1,s1,s2); testdata=LN(data2,s1,s2)
func(data,testdata);
data=RN(data1,s1,s2); testdata=RN(data2,s1,s2)
func(data,testdata)
}
}
func(m,w)
Actually i made an global array to store s1 named "variable". It contains "k"
values. When it enters into "if", i made a list of variable named "vr". So it
will make "n" lists. If i get the print out of "vr", i will get
[[1]]
[1] 4
[[1]]
[1] 4
[[2]]
[1] 4 4 3
[[1]]
[1] 4
[[2]]
[1] 4 4 3
[[3]]
[1] 4 4 3
[[1]]
[1] 4
[[2]]
[1] 4 4 3
[[3]]
[1] 4 4 3
[[4]]
[1] 4 4 3
But if i print(vr[[n]]), i get result like an array
[1] 4
[1] 4 4 3
[1] 4 4 3
[1] 4 4 3
I want to access a particular list vr[[n-1]], but it gives an error
"Error in print(vr[[n - 1]]) : attempt to select less than one element".
How can i tackle this problem to access vr[[n-1]]. Please give some suitable
suggestions.
Thanks and best regards
Muhammad Azam
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
