similar to: Factor and Level Issue

Hi useR's, Has anyone used the "Lars" package in R before? If so, is there any tutorial (not manual) or worked out example online for this R package that one can go through to figure out how one can use this package with lasso regression? I appreciate any help I can get in this direction. Sincerely, Vishal -- *Vishal Thapar, Ph.D.* *Scientific informatics Analyst Cold Spring

Hi All, I am trying to use the "Kernlab" package for training and prediction using SVM's. I am getting the following error when I am trying to use the predict function: > predictSvm = predict(modelforSVM, testSeq); Error in `contrasts<-`(`*tmp*`, value = "contr.treatment") : contrasts can be applied only to factors with 2 or more levels The training file is a

Hi All, Did anyone else have a problem like this? I am sorry if its a small issue, I seem to not understand what to do to get rid of this error. > Sigma [1] 0.1939025 > MuRest [1] 8.512772 > TauZero [1] 0.1 > curve(qlnorm(x,-TauZero+MuRest, Sigma,lower.tail=F), xlim=c(4000,9000), ylim=c(0,.99),xlab="", ylab="") Warning message: In qlnorm(p, meanlog, sdlog,

Hi useR's, I am resending this request since I got no response for my last post and I am new to the list so pardon me if I am violating the protocol. I am trying to use the "Kernlab" package for training and prediction using SVM's. I am getting the following error when I am trying to use the predict function: > predictSvm = predict(modelforSVM, testSeq); Error in

Hi All, This is more of a general statistics question that I am not so sure about so I need some thoughts from you experts out there. I have Chip-Seq read count data for 2 different treatments (T1 and T2) and my final aim is to calculate differential expression between them. I also have Chip-Seq read count data from a "control / wild type (C)" experiment. I have 3 replicates (2

Hi, I apologize for posting this here, I am also trying to post this on machine learning emailing lists. I have a set (18K) of sequences (22 nt long) and I have their counts at 4 different stages. The difference in counts from one stage to the next represents how well the sequence performed in the transition. The total counts remain about the same in each stage. So if a 1 sequence loses some

Hi, I am writing to seek some guidance regarding using Lasso regression with the R package LARS. I have introductory statistics background but I am trying to learn more. Right now I am trying to duplicate the results in a paper for shRNA prediction "An accurate and interpretable model for siRNA efficacy prediction, Jean-Philippe Vert et. al, Bioinformatics" for a Bioinformatics project

On Fri, Aug 04, 2023 at 09:03:20PM +0000, Verma, Vishal L wrote: > On Fri, 2023-08-04 at 20:39 +0200, Pankaj Gupta wrote: > > Gentle ping! > > > > Dan, Vishal for suggestion/review on this patch and request for merging. > > +Cc Michael for awareness, as virtio-pmem device is currently broken. > > Looks good to me, > > Reviewed-by: Vishal Verma

On Fri, Aug 04, 2023 at 09:03:20PM +0000, Verma, Vishal L wrote: > On Fri, 2023-08-04 at 20:39 +0200, Pankaj Gupta wrote: > > Gentle ping! > > > > Dan, Vishal for suggestion/review on this patch and request for merging. > > +Cc Michael for awareness, as virtio-pmem device is currently broken. > > Looks good to me, > > Reviewed-by: Vishal Verma

Hi there! I'm having some strange permissions issues with one of my systems that's on an Active Directory domain. Here's the basic background: - System is joined to AD domain. Users authenticate fine via Kerberos, and are authorized via an AD user group. They can browse the share, create files, etc. without incident. "valid users" lets them in. - User information for the

Another approach that I have come across is to decode all speex audio streams and add their 16 bit signed PCM values clipping values above 2^15-1 and below -2^15. Is this a reliable appproach? On Thu, Oct 14, 2010 at 3:54 PM, Vishal Jain <cse.vishal at gmail.com> wrote: > Hello, > > In a way similar to speexclient voip example, I want to have a voip > application where 3 or

Gabor, Thanks much. Your solution is elegant. My overall scheme is to take present date, and check whether it is a weekend, if not, then create a string based on the date, to concatenate into a url link for download.file( ). The files I need to download have a part which is in the format: mmddyy. I am working to make myself a system to connect to exchanges, and download end of day files from

Hi, I was working on multithreading a cross iteration loop. I want to insert a pthread_create function call and use other pthread functions into my LLVM IR. Issue is how do i get these functions using module->getOrInsertFunction("pthread_create"), since the function might not be there in IR and then insert function calls to these functions. So, crux is how do i call pthread

Hi all, I am attempting to fit, and test the goodness of fit of, a mixed exponential distribution to my dataset which consists of 15minute rainfall intensity data. FYI, the dataset spanning approx.2 years and 7 rainfall stations consists of some three hundred thousand 15min data records, of which some 30 thousand are non-zero rainfall amounts. Could anyone please tell me how i could do

date <- as.POSIXlt(Sys.time()) #present date for (i in 1:difftime(as.POSIXlt(Sys.Date()),"2007-10-01")) if (date$wday != 0 & date$wday != 6) {print(date);assign("date", (date-86400))} else (assign("date", (date-86400))) I am trying to print dates from present day to a day in the past, but omitting weekends. I am not doing something right, but can't

Hi Matt, All, Thanks for looking into this and your suggestions. I compiled the program with -O3 optimization level (clang -O3) on X86_64 target. After your suggestion, i ran the program with iteration of 10000 runs and found that average runtimes are (attaching data collected as well) Forward loop traverse : 2.006 milli seconds Reverse loop traverse : 1.531 milli seconds Yes, i agree that

Can someone throw light on the following problem I am having with RODBC? There's an Excel file I am trying to read from, it has one sheet named 'nameclass'. Thanks in anticipation. Vishal Belsare > library(RODBC) > con = odbcConnectExcel(file.choose()) > tbls <- sqlTables(con) > tbls TABLE_CAT TABLE_SCHEM TABLE_NAME TABLE_TYPE REMARKS 1

Is there any existing implementation in R/S of : 1] Pincus & Kalman's approximate entropy (ApEn) measure 2] Total Correlation / Multiinformation 3] Information Interaction A search doesn't quite reveal anything, but I'd be keen to not reinvent in case someone has worked on it. Many thanks in anticipation. Best, Vishal Belsare

Hello, In a way similar to speexclient voip example, I want to have a voip application where 3 or more users can interact. This creates the following problems "1. How to playback 2 or more audio streams such that they appear overlayed (parallel)". The audio streams are speex encoded. I have few approaches in mind. 1. Create multiple decoder states and multiple ALSA audio playback

OK, I managed to get past this problem. There were two issues - I did not have peth0 configured correctly (as you can see, the ifconfig output does not show a peth0). That was resolved by fixing my settings in the network manager. The second issue was that I don''t have a static IP address, so I selected the option for DHCP on wireless during the guest host setup. I switched to static IP