Exactly. Thanks a lot, I was trying sapply with to result. -----Original Message----- From: "Rui Barradas" [ruipbarradas at sapo.pt] Date: 03/11/2017 10:06 AM To: "ce" <zadig_1 at excite.com>, r-help at r-project.org Subject: Re: [R] find index in a list of list Hello, Something like this? find <- list(a=11,b="y") which(sapply(mylist, identical, find)) Hope this helps, Rui Barradas Em 11-03-2017 14:59, ce escreveu:> Hi all, > > I have a list of lists like this : > > mylist <- list(list(a=10,b="x"),list(a=11,b="y"),list(a=12,b="z")) > > I want to find the index of list in mylist where a = 11 and b = "y" , so I want to get 2 as a result > > Thanks in advance > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. >