similar to: Selecting numeric data from a data frame

Lets say I have a vector as follows xx<-rnorm(20) How could I find the indices of the vector<0? Thanks Meir ******************************************** Meir Preiszler - Research Engineer I t a m a r M e d i c a l Ltd. Caesarea, Israel: Tel: +(972) 4 617 7000 ext 232 Fax: +(972) 4 627 5598 Cell: +(972) 54 699 9630 Email: pmeir@itamar-medical.com Web: www.Itamar-medical.com

Hi, Does anyone know where such a function can be found? Thanks Meir ******************************************** Meir Preiszler - Research Engineer I t a m a r M e d i c a l Ltd. Caesarea, Israel: Tel: +(972) 4 617 7000 ext 232 Fax: +(972) 4 627 5598 Cell: +(972) 54 699 9630 Email: pmeir@itamar-medical.com Web: www.Itamar-medical.com *********************************************

Hi, I would like to try using a Support Vector Machine on a classification problem that I'm dealing with. Does such a package exit in R? Thanks Meir ******************************************** Meir Preiszler - Research Engineer I t a m a r M e d i c a l Ltd. Caesarea, Israel: Tel: +(972) 4 617 7000 ext 232 Fax: +(972) 4 627 5598 Cell: +(972) 54 699 9630 Email: pmeir@itamar-medical.com

Hi, Assume I have a variable Y having two discrete values and two predictor variables x1 and x2. I then do a logistic regression model fit as: fit<-glm(Y~x1+x2,family=binomial). Are there functions in R than calculate the Sensitivity, Specificity , and Agreement of the model "fit"? Thanks Meir ******************************************** Meir Preiszler - Research Engineer I t

I am working through Tom Minka's lectures on Data Mining and am now on Day 32. The following is the link: http://alumni.media.mit.edu/~tpminka/courses/36-350.2001/lectures/day32/ In order to use the functions cited I followed the instructions as follows: Installed tree package from CRAN mirror (Ca-1) Downloaded and sourced the file "tree.r" Downloaded the function

Hi, As a number of people suggested, I downloaded the "e071" package and am using the function "svm" for my classification problem. I now want to take the classifier outside the R environment, for example to a C program, and use it. I know that the classifer is of the form WTX+b where W is defined by the support vectors. I did not see that W vector is output from svm. If am

Hello Everybody, I have a physical machine with 4 Ethernet cards that I have mapped to 4 bridges. I would like to have each of my KVMs use 2 bridges for NIC bonding. 1. Can I have more than one bridge assign to one KVM? 2. Can I use virt-install to assign a KVM with more than one bridge during the KVM installation? a. It was a long shot but I have tried bridge=br0,br1 ;

Hello, I would like to have a One XEN read only image to be shared among many physical machines. I would also need to have a writable file system for /etc /var and /tmp. How can I do that? Thank you, Meir _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

speex_preprocess() isn't covered in the manual, is it? But, it's very easy to use. If it returns non-zero, voice was detected. Tom "Meir Yeshurun" <mt_yeshurun@hotmail.com> wrote: > > I would like to use speex_preprocess() for voice activity detection. I read > the comments in speex_preprocess.h and the relevant paragraphs in the Speex > manual. Is there

I read through Harrington and Fleming (1982) but it is beyond my statistical comprehension. I have survival data for insects that have a very finite expiration date. I'm trying to test for differences in survival distributions between different groups. I understand that the medical field is most often dealing with censored data and that survival analysis, at least in the package survival,

Hi I have been asked to provide Weibull parameters from a paper using Kaplan Meir survival analysis. This is something I am not familiar with. The survival analysis in R works nicely and is the same as commercial software (only the graphs are superior in R). The Weibull does not and produces an error (see below). Any ideas why this error should occur? My approach may be spurious.

Hi, We have a Linux (RHEL 3.0, update 3) Samba 3 server which worked fine for months but suddently have trouble to keep its trust with the DC server. The only way to recover is to reset the machine account from the Windows DC side and do a "net join" to the domain from the Linux side. The Linux machine is able to keep its "trust" with the domain exactly 7 days, which,

I am trying to model data in which subjects are followed through time to determine if they fall, or do not fall. Some of the subjects fall once, some fall several times. Follow-up time varies from subject to subject. I know how to model time to the first fall (e.g. Cox Proportional Hazards, Kaplan-Meir analyses, etc.) but I am not sure how I can model the data if I include the data for those

Hi! My question(s) in the end might be silly but I am no expert on this, so here it goes: Noy-Meir (1973), Pielou (1984) and a few others have pointed to non-centered PCA being in some cases useful. They clearly explain that "it is the case" when multi-dimensional data display distinct clusters (which have zero, or near-zero, projections in some subset of the axes) and the task is

I want to create a new array which selects values from an original array based on a function of the indices. That is: I want to create a new matrix Vnew[i,j,k]=Vold[i,j,ks] where ks is a function of the index elements i,j,k. I want to do this WITHOUT a loop. Call the function "ksfunction", and the array dimensions nis,njs,nks. I can do this using a loop as follows: # Loop version:

On 11/22/2013 10:26 AM, Исаев Виталий Анатольевич wrote: > Thanks, Itamar. Hooks are really great tool. > No doubt we will use them. > > But I still need some clarification about interaction between hooks (on the manager's side) and libguestfs (on the side of hypervisor/storage). these are vdsm-hooks, they run on the host, not on the engine (manager). the engine does allow you, if

I am running 2.6.18-1.2693.fc6xen and I am receiving this message powernow-k8: Processor cpuid 681 not supported anyone know if xen works on processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(tm) Prosussor stepping : 1 cpu MHz : 1994.985 cache size : 256 KB fdiv_bug : no hlt_bug : no

I am running 2.6.18-1.2693.fc6xen and I am receiving this message powernow-k8: Processor cpuid 681 not supported anyone know if xen works on processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(tm) Prosussor stepping : 1 cpu MHz : 1994.985 cache size : 256 KB fdiv_bug : no hlt_bug : no

Rich, you are right; the hypervisor is RHEV-H. As Itamar has just explained me, hooks are executed on the hypervisor’s side (not on the RHEV-M, as I used to think), so properly working libguestfs on the RHEV-H will resolve my issue. Here is the output of the test tool: ************************************************************ * IMPORTANT NOTICE * * When

________________________________________ От: Itamar Heim [iheim@redhat.com] Отправлено: 21 ноября 2013 г. 20:10 Кому: Richard W.M. Jones; Исаев Виталий Анатольевич Копия: libguestfs@redhat.com Тема: Re: [Libguestfs] Accessing iSCSI disc images from the RHEV Manager using libguestfs On 11/21/2013 05:56 PM, Richard W.M. Jones wrote: > [Adding Itamar: Any suggestions on where Vitaly could get