search for: fnn

...t completes in 2.3 seconds For 121,000*5 records it completes in 63 seconds For 121,000*10 records it doesn't complete When I try other methods to read the file in chunks (using scan), the process breaks down because I have to start at the beginning of the file on every iteration. For example: fnn=function(n,col){ a=122*(n-1)+2 xx=scan(fname,skip=a-1,nlines=121,sep=',',quiet=TRUE,what=character(0)) xx=xx[xx!=''] xx=matrix(xx,ncol=49,byrow=TRUE) xx[,col] } system.time(sapply(1:10,fnn,c=26)) # 0.31 Seconds system.time(sapply(91:90,fnn,c=26)) # 1.09 Se...

...uot;x1"],0.8+d[i,"m1"]-d[i,"x1"]); >>>>Pn<- rbeta(1000,0.2+d[i,"y1"],0.8+d[i,"n1"]-d[i,"y1"]); >>>>Fm<- ecdf(Pm); >>>>Fn<- ecdf(Pn); >>>> >>>>Fmm<- Fm(p1L); >>>>Fnn<- Fn(p1H); >>>>R<- (Fmm+Fnn)/2;? >>>>Fmm_f<- max(R, Fmm); >>>>Fnn_f<- min(R, Fnn); >>>>Qm<- 1-Fmm_f; >>>>Qn<- 1-Fnn_f; >>>>data.frame(Qm,Qn)})) >>>>d2<-cbind(d,d1) >>>>head(d2) >&...

Thank you very much for your reply. Your code work well with this example. I modified a little to fit my real data, I got an error massage. Error in split.default(x = seq_len(nrow(x)), f = f, drop = drop, ...) : Group length is 0 but data length > 0 On Thu, Jan 31, 2013 at 12:21 PM, arun kirshna [via R] < ml-node+s789695n4657196h87@n4.nabble.com> wrote: > Hi, > Try this: >

Hi, I have a task to complete and I'm getting stuck. I can't find anything comparable in the documentation. The shortest explanation I can give is as follows: I need to use double-precision floating point values for floating-point multiplies. I'll not go into why: That would take the discussion away from the essential problem. E.g. Replace: fmuls %f20,%f21,%f8 with the

...s. We are using ssh multiplexing to reduce CPU and network load. We have a script in cron to restart the ControlMaster process; it is restarting approx 280 times per day. The ssh ControlMaster syntax: /usr/local/bin/ssh -oControlMaster=yes -oControlPath="/cdrc/.ssh/mp_sock-scholzite" -fnN -c blowfish-cbc transfer at scholzite-be We are using Openssh-5.1p1 compiled from source (and Openssl-0.9.8h). This OpenSSH version is used on the client and server, both servers are Solaris 9 Sparc platforms. The max file descriptors kernel parameter on both systems is 8192. The following para...

Hi, I have a cloud of randomly distributed points in 2-dimensional space and want to set up a grid, with a given grid-cell size, that minimizes the distance between my points and the grid nodes. Does anyone know of an R function or toolbox that somehow addresses this problem? This is a problem of optimizing the location of the grid, not a problem of deciding what should be the grid-cell size,

CRAN (and crantastic) updates this week New packages ------------ * EffectStars (1.0) Maintainer: Unknown Author(s): Gunther Schauberger License: GPL-2 http://crantastic.org/packages/EffectStars The package provides functions to visualize regression models with categorical response. The effects of the covariates are plotted with star plots in order to allow for an optical

CRAN (and crantastic) updates this week New packages ------------ * allan (1.0) Alan Lee http://crantastic.org/packages/allan Automates Large Linear Analysis Model Fitting * andrews (1.0) Jaroslav Myslivec http://crantastic.org/packages/andrews Andrews curves for visualization of multidimensional data * anesrake (0.3) Josh Pasek http://crantastic.org/packages/anesrake This

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