Re: [R] delete repeated values - not unique...
rle is extremely cool!! This is really an impressive method to reduce vectors to point where you need to do calculations. This really helped! Thanks a lot! jorgusch -- View this message in context: http://n4.nabble.com/delete-repeated-values-not-unique-tp1557625p1559171.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] delete repeated values - not unique...
Hello, I must be blind not to see it, but I have the following vector: 4 4 5 6 6 4 What I would like to have as a result is: 4 5 6 4 All repeated values are gone. I cannot use unique for this, as the second 4 would disappear. Is there another fast function for this problem? Thanks in advance! -- View this message in context: http://n4.nabble.com/delete-repeated-values-not-unique-tp1557625p1557625.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] delete repeated values - not unique...
On Feb 16, 2010, at 11:01 AM, jorgusch wrote: Hello, I must be blind not to see it, but I have the following vector: 4 4 5 6 6 4 What I would like to have as a result is: 4 5 6 4 All repeated values are gone. I cannot use unique for this, as the second 4 would disappear. Is there another fast function for this problem? Thanks in advance! See ?rle x - c(4, 4, 5, 6, 6, 4) rle(x)$values [1] 4 5 6 4 HTH, Marc Schwartz __ 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.
Re: [R] delete repeated values - not unique...
Well, can you algorithmically describe what you are trying to do? Your example is not sufficient to determine it. For instance, are you trying to: 1) remove repeated elements of a vector and concatenate the first element at the end? 2) remove repeated elements of a vector and concatenate the minimum element at the end? 3) always return the vector c(4, 5, 6, 4) ? 4) something else? jorgusch wrote: Hello, I must be blind not to see it, but I have the following vector: 4 4 5 6 6 4 What I would like to have as a result is: 4 5 6 4 All repeated values are gone. I cannot use unique for this, as the second 4 would disappear. Is there another fast function for this problem? Thanks in advance! __ 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.
Re: [R] delete repeated values - not unique...
-Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of jorgusch Sent: Tuesday, February 16, 2010 9:01 AM To: r-help@r-project.org Subject: [R] delete repeated values - not unique... Hello, I must be blind not to see it, but I have the following vector: 4 4 5 6 6 4 What I would like to have as a result is: 4 5 6 4 All repeated values are gone. I cannot use unique for this, as the second 4 would disappear. Is there another fast function for this problem? Is this what you want? It keeps only those values which are the not the same as the previous value in the vector. isFirstInRun - function(x) c(TRUE, x[-1]!=x[-length(x)]) data - c(4, 4, 5, 6, 6, 4) data[isFirstInRun(data)] [1] 4 5 6 4 Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com Thanks in advance! -- View this message in context: http://n4.nabble.com/delete-repeated-values-not-unique-tp15576 25p1557625.html Sent from the R help mailing list archive at Nabble.com. __ 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. __ 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.
Re: [R] delete repeated values - not unique...
On Feb 16, 2010, at 12:01 PM, jorgusch wrote: Hello, I must be blind not to see it, but I have the following vector: 4 4 5 6 6 4 What I would like to have as a result is: 4 5 6 4 ?diff vec - c(4,4,5,6,6,4) vec[ c(1, diff(vec)) != 0 ] [1] 4 5 6 4 All repeated values are gone. I cannot use unique for this, as the second 4 would disappear. Is there another fast function for this problem? Thanks in advance! -- View this message in context: http://n4.nabble.com/delete-repeated-values-not-unique-tp1557625p1557625.html Sent from the R help mailing list archive at Nabble.com. __ 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. David Winsemius, MD Heritage Laboratories West Hartford, CT __ 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.
Re: [R] delete repeated values - not unique...
Ah, the request was 'hidden' in the subject of the message, apologies! Erik Iverson wrote: Well, can you algorithmically describe what you are trying to do? Your example is not sufficient to determine it. For instance, are you trying to: 1) remove repeated elements of a vector and concatenate the first element at the end? 2) remove repeated elements of a vector and concatenate the minimum element at the end? 3) always return the vector c(4, 5, 6, 4) ? 4) something else? jorgusch wrote: Hello, I must be blind not to see it, but I have the following vector: 4 4 5 6 6 4 What I would like to have as a result is: 4 5 6 4 All repeated values are gone. I cannot use unique for this, as the second 4 would disappear. Is there another fast function for this problem? Thanks in advance! __ 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. __ 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.
Re: [R] delete repeated values - not unique...
rle() is cool. - PhD Candidate in Statistics Dept. of Mathematics Statistics University of New Hampshire Durham, NH 03824 USA -- View this message in context: http://n4.nabble.com/delete-repeated-values-not-unique-tp1557625p1557728.html Sent from the R help mailing list archive at Nabble.com. __ 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.
