Vassilis Golfinopoulos wrote: > Consider this sample dataset (displayed [1:3, 1:3]): > > T1053B T1102A T1129A > AKT1 -0.02412174 0.1986057 NA > AURKA -0.37109748 -0.4418542 0.04967051 > BRAF -0.14589269 -0.1590310 -0.35483226 > >> is.na(dataset[1, 3]) > TRUE > > library(impute) > library(GeneMeta) > > imputed.dataset <- impute.knn(as.matrix(dataset))
impute.knn has a second parameter k with default value 10, the number of nearest neighbors to use, in gene space, for imputation. For the example above, there are not 10 nearest neighbors, and unfortunately impute.knn does not check for this. Is this the case with your real data? This might address your problem with impute.knn, a GeneMeta example would help for progress on that front. Martin > CRASH! > > > 2009/9/21 Greg Snow <greg.s...@imail.org>: >> Help us to help you, show us the code that you tried, what you expected, and >> what you saw. >> >> Does "using NA condition" mean: >> >>> x == NA >> Which does not work >> >> Or >> >>> is.na(x) >> Which should. >> >> -----Original Message----- >> From: "premmad" <mtechp...@gmail.com> >> To: "r-help@r-project.org" <r-help@r-project.org> >> Sent: 9/21/09 12:38 AM >> Subject: [R] Handling missing data >> >> >> I have to remove missing data both in character and numeric datatype.I tried >> using NA condition but it is not working ,please help me to solve this. >> -- >> View this message in context: >> http://www.nabble.com/Handling-missing-data-tp25530192p25530192.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. >> > > ______________________________________________ > 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.
