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Could someone give me an idea on how to do rolling ranking, i.e. rank in the moving window of last 100 numbers in a long vector? I tried naive solution like roll.rank<-function(v, len){ r<-numeric(length(v)-len+1) for(i in len:length(v)) r[i-len+1]<-rank(v[(i-len+1):i])[len] r } However, it turns out pretty slow even on my rather able Linux box. For

I have pretty big data sizes, like matrices of .5 to 1.5GB so once i need to juggle several of them i am in need of disk cache. I am trying to use bigmemory package but getting problems that are hard to understand. I am getting seg faults and machine just hanging. I work by the way on Red Hat Linux, 64 bit R version 10. Simplest problem is just saving matrices. When i do something like

Hi, i have 8.10 Ubuntu, R version 2.7.1 on 64 bit pc. I install packages fine, but when i try to do install.packages("debug") i get error message package 'debug' is not available Does this package exist for Ubuntu? -- View this message in context: http://n4.nabble.com/package-debug-not-available-in-Ubuntu-tp1597844p1597844.html Sent from the R help mailing list archive at

...m function for separability indices (Nikos Alexandris) 113. Re: Symbolic eigenvalues and eigenvectors (Steve Lianoglou) 114. Re: Delete rows with duplicate field... (kMan) 115. converting an objects list (Anthony Fristachi) 116. masking of objects between mtrace() and getYahooData() (zerdna) 117. Re: How to make predictions with the predict() method on an arimax object using arimax() from TSA library (Dennis Murphy) 118. question about 'write.table' (karena) 119. Re : Re : aregImpute (Hmisc package) : error in matxv(X, xcof)... (Marc Carpentier) 120. Re:...

I am using getYahooData from TTR to get daily data. When i do it standalone, it is fine. It also works fine inside my code. However, when i run code inside mtrace(), i always get the following error: Error in xts(cbind(adj[[1]], adj[[2]]), index(obj)): order.by requires an appropriate time-based object After a lot of hand wringing, it looks to me that it happens because index in xts masks

I have R script that i need to run in cron. Either R libraries or some .so libraries that they depend on don't get loaded correctly. Here is an example. I have a file, call it tmp.R tmp.R ========================= R --slave --args $0 $* <<EOF cmarg = commandArgs()[5] library(R.utils) b<-intToBin(cmarg) print(paste( "argument is ", cmarg, sep=""))