select elements in a list
Hi, This should work: select <- l[which(l==x):which(l==y)] The problem is that you tried to select the values, but gave x and y as indexes. That's why you didn't get the expected result. See ?which for more info. HTH, Ivan Le 5/21/2010 11:07, arnaud Gaboury a ?crit :
Dear group,
Here is a list :
l<-
list("100415", "100416", "100419", "100420", "100421", "100422",
"100423", "100426", "100427", "100428", "100429", "100430",
"100503", "100504", "100505", "100506", "100507", "100510",
"100511", "100512", "100513")
I need to access part of it with two variables, x and y. For example, if
x<-100415 et y<-100420, the result I want is 100415,100416,100419,100420.
The object "l" is a list, but can be of any other kind if it can help.
I tried something like this :
select<-l[c(x:y)]
But it doesn't return the needed result Any help would be appreciated *************************** Arnaud Gaboury Mobile: +41 79 392 79 56 BBM: 255B488F
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Ivan CALANDRA PhD Student University of Hamburg Biozentrum Grindel und Zoologisches Museum Abt. S?ugetiere Martin-Luther-King-Platz 3 D-20146 Hamburg, GERMANY +49(0)40 42838 6231 ivan.calandra at uni-hamburg.de ********** http://www.for771.uni-bonn.de http://webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php