similar to: Chars as numbers

Why sometimes one has to put a double backslash in regular expressions, but often simple backslashes work too? Is only a \ required for giving a metacharacter its usual meaning? --------------------------------------- u=grep('\\{[\\-u]x',a,perl=T) # equivalent to u=grep('\{[\-u]x',a,perl=T) # but u=grep('\w',a,perl=T) # is not correct and requires

I have two questions about data frames: (1) How can one extract a simple matrix from a data frame? I tried Matrixfromdf = function (frame,without=1) {a=frame[colnames(frame)[-without]] v=unlist(a,use.names=F) matrix(v,ncol=ncol(a))} but it works well only for without=1, perhaps also because the function in (2) gives probably a different meaning to the first column. (2)

How precise is R numerically? For example I wrote the following function for calculating the volume of the ball inscribed in the unit cube in m dimensions. In order to see what happens in 40 dimensions, I created an output of 24 digits. But how many are precise? Thanks Josef Eschgf?ller Ferrara --------------------------------------- Vol = function (m) {if (m<=1) 1 else Vol(m-2)*pi/(m+m)}

Hi. I need to draw a circle whit center (a,b) and radio r. So I use the R code below a<-1.975 # valore x del centro b<-1.215 # valores y del centro r<-1.46 # radio x1<-seq(a-r,a+r,by=0.01); #los valores de x yp<-sqrt(r^2-(x1-a)^2)+b; # los valores y a partir de la ra??z positiva yn<-(-1)*sqrt(r^2-(x1-a)^2)+b; # los valores y a partir de la ra??z negativa x<-c(x1,x1);

On Mon, Feb 05, 2018 at 10:57:58PM +0100, Luca 'remix_tj' Lorenzetto wrote: > On Fri, Feb 2, 2018 at 12:52 PM, Richard W.M. Jones <rjones@redhat.com> wrote: > > There is a section about this in the virt-v2v man page. I'm on > > a train at the moment but you should be able to find it. Try to > > run many conversions, at least 4 or 8 would be good places to

On Tue, Feb 06, 2018 at 11:11:37AM +0100, Luca 'remix_tj' Lorenzetto wrote: > Il 6 feb 2018 10:52 AM, "Yaniv Kaul" <ykaul@redhat.com> ha scritto: > > > I assume its network interfaces are also a bottleneck as well. Certainly if > they are 1g. > Y. > > > That's not the case, vcenter uses 10g and also all the involved hosts. > > We

On Fri, Feb 02, 2018 at 12:20:14PM +0100, Luca 'remix_tj' Lorenzetto wrote: > Hello Richard, > > unfortunately upgrading virt-v2v is not an option. Would be nice, but > integration with vdsm is not yet ready for that options. > > On Thu, Jan 25, 2018 at 11:06 AM, Richard W.M. Jones <rjones@redhat.com> wrote: > [cut] > > I don't know why it slowed

On Thu, Jan 25, 2018 at 10:53:28AM +0100, Luca 'remix_tj' Lorenzetto wrote: > On Thu, Jan 25, 2018 at 10:08 AM, Richard W.M. Jones <rjones@redhat.com> wrote: > > There's got to be some difference between your staging environment and > > your production environment, and I'm pretty sure it has nothing to do > > with the version of oVirt. > > > >

I apologize if this post is not relevant to this mailing list, but I feel it might be of interest for many of you and did not find any other more suitable R-list. We are seeking for a couple of post-docs at University of Ferrara, Italy. The posts are in microarrays data mining and are for people with a degree in Statistics, IT or related. A documented interest in biological problems,

I'm a PhD student and I'm working with covariance function. I'm interested to know if exist some packages in R to calculate and plot the bidimensional Autocovariance Function. the input matrix is a matrix that describe a spatial location over a 2-D space and I want to use it in the same way I can use a time serie in the 1-D acf. Thanks, Nicola.

I'm a PhD student and I'm working with covariance function. I'm interested to know if exist some packages in R to calculate and plot the bidimensional Autocovariance Function. the input matrix is a matrix that describe a spatial location over a 2-D space and I want to use it in the same way I can use a time serie in the 1-D acf. Thanks, Nicola.

R-help, Sometimes I define functions I wish to have in any R session. The obvious thing to do is copy-paste the code The thing is that sometimes I don't know where I have the function code. My question is if somehow I could define a function and "introduce" it (let's say 'base' package ) so that could be used anytime I run a different R project. Thank you in advance

On Wed, Jan 24, 2018 at 11:49:13PM +0100, Luca 'remix_tj' Lorenzetto wrote: > Hello, > > i've started my migrations from vmware today. I had successfully > migrated over 200 VM from vmware to another cluster based on 4.0 using > our home-made scripts interacting with the API's. All the migrated vms > are running RHEL 6 or 7, with no SELinux. > > We

I am currently trying to get mcollective 2.2.4 up and running on RHEL 6 activeqm appears to be running and bound to the correct port, I see the server and client connections to the activemq box. However when I run mco ping all "seems to go well" except I get "No responses recieved" and above that I get the following log messages, debug 2013/05/29 17:02:12: activemq.rb:233:in

I updated my source and compiled * last night so I am running CVS-HEAD-08/24/04-23:51:01. This morning I have noticed that when anyone tries to retrieve their voicemail, the voicemail app is not recognizing any digits entered from the phones (cisco 7960's), so It just times-out waiting for digits. Has anyone else seen this problem or could it be something in our environment? TIA, Jamie

Hi folks, I have been using Samba4 as an Active Directory domain controller with many clients since about 2013, and it is the best. I have recently been asked to extend the AD domain in a clients office, to 6 other physical sites. Rather than reinvent the wheel, what is the best way to accomplish this given the current support in Samba4? Alex Ferrara Director Receptive IT Solutions

I am having trouble getting my T100P and ADIT 600 talking. I have 2 FXO 8 port cards in the ADIT and a T1 controller card. I have a T1 x-over cable connecting two together. Here are copies of the relevant bits of my zaptel.conf and Zapata.conf Zaptel.conf span=1,0,0,esf,b8zs loadzone=us defaultzone=us Zapata.cfg context=default signalling=fxs_ks group=1 channel => 1-24 My

Hello Richard, unfortunately upgrading virt-v2v is not an option. Would be nice, but integration with vdsm is not yet ready for that options. On Thu, Jan 25, 2018 at 11:06 AM, Richard W.M. Jones <rjones@redhat.com> wrote: [cut] > I don't know why it slowed down, but I'm pretty sure it's got nothing > to do with the version of oVirt/RHV. Especially in the initial phase

On Fri, Feb 2, 2018 at 12:52 PM, Richard W.M. Jones <rjones@redhat.com> wrote: > There is a section about this in the virt-v2v man page. I'm on > a train at the moment but you should be able to find it. Try to > run many conversions, at least 4 or 8 would be good places to start. Hello Richard, read the man but found nothing explicit about resource usage. Anyway, digging on

On Mon, Feb 5, 2018 at 11:13 PM, Richard W.M. Jones <rjones@redhat.com> wrote: > http://libguestfs.org/virt-v2v.1.html#vmware-vcenter-resources > > You should be able to run multiple conversions in parallel > to improve throughput. > > The only long-term solution is to use a different method such as VMX > over SSH. vCenter is just fundamentally bad. 4 conversions in