search for: nsel

...t;m" rows from group 2 and calculate the mean as well. So far I've been using a for loop for doing it but when it comes to a large data set is rather inefficient. Any hint to vectorize this would be appreciated. toy = data.frame(group = c(rep(1,10),rep(2,8)), diam = c(rnorm(10),rnorm(8))) nsel = c(6,4) smean <- c(0,0) for (i in 1:2) smean[i] <- mean(toy$diam[1:nsel[i]]) Thanks Pedro [[alternative HTML version deleted]]

Here are several ways to get there, but your original loop is fine once it is corrected: > for (i in 1:2) smean[i] <- mean(toy$diam[toy$group==i][1:nsel[i]]) > smean [1] 0.271489 1.117015 Using sapply() to hide the loop: > smean <- sapply(1:2, function(x) mean((toy$diam[toy$group==x])[1:nsel[x]])) > smean [1] 0.271489 1.117015 Or use head() > smean <- sapply(1:2, function(x) mean(head(toy$diam[toy$group==x], nsel[x]))) > smea...

Hi Pedro, This may not be much of an improvement, but it was a challenge. selvec<-as.vector(matrix(c(nsel,unlist(by(toy$diam,toy$group,length))-nsel), ncol=2,byrow=TRUE)) TFvec<-rep(c(TRUE,FALSE),length.out=length(selvec)) toynsel<-rep(TFvec,selvec) by(toy[toynsel,]$diam,toy[toynsel,]$group,mean) Jim On 4/3/16, Pedro Mardones <mardones.p at gmail.com> wrote: > Dear all; > > This...

On Mittwoch, 22. Juni 2016 17:50, Roger Price wrote: On Wed, 22 Jun 2016, Andr? H?nsel wrote: > > Now, what I see is that when the UPS feeding server-1 goes LB, > > server-1 is indeed shut down, but it seems that the UPS is never switched off. > > > > This is a problem because when power is restored after shutdown, but > > before the battery runs out...

Hi, usually I use rsync with -a but recently I used it without this option and discovered that the same files are synced over and over again (as shown by -v). Of course the rsync algorithm avoids the traffic but the files are all listed. As soon as I use -a for one time those files are not transferred again, even when I remove the -a again. So I suspect, when building the file list, rsync

I will expand a little bit more. I need to install nfdump, when I beggin installation process: [root at ARM-LXMON01 nfdump-1.6.13]# ./configure \--prefix=/usr/local \--sysconfdir=/etc \--mandir=/usr/share/man \--enable-nfprofile \--enable-nftrack \--enable-sflow \--enable-nsel checking for rrd_update in -lrrd... no configure: error: Can not link librrd. Please specify --with-rrdpath=.. configure failed! I do: [root at ARM-LXMON01 nfdump-1.6.13]# find / -name librrd* /usr/lib64/librrd.so.4 /usr/lib64/librrd.so.4.2.1 /usr/lib64/librrd_th.so.4 /usr/lib64/librrd_th.so.4.2...

Hi guys , Im have some problems installing the following packages: rrdtool-devel rrdtool-perl Before we moved to centos/rhel7 it was a simple task, just doing: yum install rrdtool rrdtool-devel and rrdtool-perl was enough. Now, I only can install the rrdtool package but not rrdtool-devel and rrdtool-perl. I tryed adding some repos, but I think I added wrong ones. Also tryed downloading and

[please use reply-all when responding - the list does not mangle reply-to headers. thanks!] On Jun 22, 2016, at 4:06 AM, Andr? H?nsel wrote: > > On Mittwoch, 22. Juni 2016 09:21 Andr? wrote: > >> Hi list, >> >> (I think) I understand that in upsmon.conf, the MONITOR line ends with >> "master" or "slave". Basically if it's master it will wait for slaves to >> shut d...

I have two hosts. One is the ups-server. It's generator powered and can be assumed to never go down. This is the one that all the UPSs are connected to. It has: - the UPSs configured in upsd.conf - a "upsmon master" user in upsd.users - an empty upsmon.conf The other one is server-1. Its upsmon.conf contains: MONITOR test-apc at ups-server 1 monuser blah slave Now, what I see is

On Wed, 22 Jun 2016, Andr? H?nsel wrote: > Now, what I see is that when the UPS feeding server-1 goes LB, server-1 is > indeed shut down, but it seems that the UPS is never switched off. > > This is a problem because when power is restored after shutdown, but before > the battery runs out (with no load, it continues...

Here are the new files in a zip and the patches to existing. Also added Listbook values to parents.rb that I forgot when adding that. Sean _______________________________________________ wxruby-users mailing list wxruby-users@rubyforge.org http://rubyforge.org/mailman/listinfo/wxruby-users

...system... Is this a bug or did I something wrong? I experimented with name mangling, upper and lower case conversion but nothing did work. I found nothing about that in the docs/faqs, it seems to be trivial that the spooling works, but it doesn't. Any ideas? Thank you very much Christian Guensel [TestPrint] path = /usr/spool/testprint comment = Test Dokumentdrucker browseable = yes printable = yes read only = yes guest ok = true create mode = 0400 print command = "/usr/local/sbin/handle_printupload %I %s %U -- Christian G?nsel, Zentraldata-GmbH Leipzig gue...

Hi list, (I think) I understand that in upsmon.conf, the MONITOR line ends with "master" or "slave". Basically if it's master it will wait for slaves to shut down and if it's slave it will signal the master to switch off the UPS after shutdown. To be able to monitor a network UPS as a slave, there must be a user in upsd.users on the master system. This user needs to