Re: [R] enable object name to be called as object (a dataset)
a - 1:3 b - 11:13 c - 21:23 names - c('a','b','c') do.call(data.frame, list(sapply(names, function(x) get(x runner wrote: What I am trying to do is as follows: - I have listed names of all wanted objects (datasets A,B,C... ) in current workspace as a vector: obj - c('A','B','C') - then i need to use these objects, say to extract all the 1st columns and bind to an existing dataset ('data'): for ( i in 1:3){ newdata - obj[i] data - cbind(data,newdata [[1]] ) } Obviously, it doesn't work since obj[i] is just a string of dataset name. Here is my question: how to call it as a original dataset? Thanks. -- View this message in context: http://www.nabble.com/enable-object-name-to-be-called-as-object-%28a-dataset%29-tf4403933.html#a12564175 Sent from the R help mailing list archive at Nabble.com. __ R-help@stat.math.ethz.ch 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.
[R] enable object name to be called as object (a dataset)
What I am trying to do is as follows: - I have listed names of all wanted objects (datasets A,B,C... ) in current workspace as a vector: obj - c('A','B','C') - then i need to use these objects, say to extract all the 1st columns and bind to an existing dataset ('data'): for ( i in 1:3){ newdata - obj[i] data - cbind(data,newdata [[1]] ) } Obviously, it doesn't work since obj[i] is just a string of dataset name. Here is my question: how to call it as a original dataset? Thanks. -- View this message in context: http://www.nabble.com/enable-object-name-to-be-called-as-object-%28a-dataset%29-tf4403933.html#a12563767 Sent from the R help mailing list archive at Nabble.com. __ R-help@stat.math.ethz.ch 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.
Re: [R] enable object name to be called as object (a dataset)
This should work: do.call(cbind, lapply(1:length(obj), function(i) get(obj[i])[,1])) Best, Giovanni Date: Fri, 07 Sep 2007 14:42:07 -0700 (PDT) From: runner [EMAIL PROTECTED] Sender: [EMAIL PROTECTED] Precedence: list What I am trying to do is as follows: - I have listed names of all wanted objects (datasets A,B,C... ) in current workspace as a vector: obj - c('A','B','C') - then i need to use these objects, say to extract all the 1st columns and bind to an existing dataset ('data'): for ( i in 1:3){ newdata - obj[i] data - cbind(data,newdata [[1]] ) } Obviously, it doesn't work since obj[i] is just a string of dataset name. Here is my question: how to call it as a original dataset? Thanks. -- View this message in context: http://www.nabble.com/enable-object-name-to-be-called-as-object-%28a-dataset%29-tf4403933.html#a12563767 Sent from the R help mailing list archive at Nabble.com. __ R-help@stat.math.ethz.ch 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. -- Giovanni Petris [EMAIL PROTECTED] Associate Professor Department of Mathematical Sciences University of Arkansas - Fayetteville, AR 72701 Ph: (479) 575-6324, 575-8630 (fax) http://definetti.uark.edu/~gpetris/ __ R-help@stat.math.ethz.ch 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.
Re: [R] enable object name to be called as object (a dataset)
get might be good enough for you: a - 10 name - a get(a) [1] 10 get(name) [1] 10 Gabor On Fri, Sep 07, 2007 at 02:42:07PM -0700, runner wrote: What I am trying to do is as follows: - I have listed names of all wanted objects (datasets A,B,C... ) in current workspace as a vector: obj - c('A','B','C') - then i need to use these objects, say to extract all the 1st columns and bind to an existing dataset ('data'): for ( i in 1:3){ newdata - obj[i] data - cbind(data,newdata [[1]] ) } Obviously, it doesn't work since obj[i] is just a string of dataset name. Here is my question: how to call it as a original dataset? Thanks. -- View this message in context: http://www.nabble.com/enable-object-name-to-be-called-as-object-%28a-dataset%29-tf4403933.html#a12563767 Sent from the R help mailing list archive at Nabble.com. __ R-help@stat.math.ethz.ch 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. -- Csardi Gabor [EMAIL PROTECTED]MTA RMKI, ELTE TTK __ R-help@stat.math.ethz.ch 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.