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Hello! I'm looking for an easy way to filter data frames. Some rows in my data frame needs to be left out, for instance, rows with invalid data. Right now, if I want to pair two columns of this data frame, I have to do this: > pairs(as.data.frame(list(tstart=df$tstart[valid],tend=df$tend.sdr[valid]))) or this: > pairs(cbind(df$tstart,df$tend)[valid,],labels=c("tstart","tend")) where 'valid' is a logical vector of valid rows. Is there a way to filter a data frame without making a vector of the columns, thus losing the column names? Okay, p...

How do people go about synchronizing multiple workspaces on different workstations? I tend to wind up with projects spread around the various machines I work on. I find that placing the directories on a server and reading them remotely tends to slow things down. thanks, Eric -- Eric Turkheimer, PhD Department of Psychology University of Virginia PO Box 400400 Charlottesville, VA 229...

...s(+), 2 deletions(-) diff --git a/tools/virtio/ringtest/run-on-all.sh b/tools/virtio/ringtest/run-on-all.sh index 52b0f71..2e69ca8 100755 --- a/tools/virtio/ringtest/run-on-all.sh +++ b/tools/virtio/ringtest/run-on-all.sh @@ -3,10 +3,10 @@ #use last CPU for host. Why not the first? #many devices tend to use cpu0 by default so #it tends to be busier -HOST_AFFINITY=$(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n|tail -1) +HOST_AFFINITY=$(lscpu -p=cpu | tail -1) #run command on all cpus -for cpu in $(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n); +for cpu in $(seq 0 $HOST_AFFINITY) do...

...s(+), 2 deletions(-) diff --git a/tools/virtio/ringtest/run-on-all.sh b/tools/virtio/ringtest/run-on-all.sh index 52b0f71..2e69ca8 100755 --- a/tools/virtio/ringtest/run-on-all.sh +++ b/tools/virtio/ringtest/run-on-all.sh @@ -3,10 +3,10 @@ #use last CPU for host. Why not the first? #many devices tend to use cpu0 by default so #it tends to be busier -HOST_AFFINITY=$(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n|tail -1) +HOST_AFFINITY=$(lscpu -p=cpu | tail -1) #run command on all cpus -for cpu in $(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n); +for cpu in $(seq 0 $HOST_AFFINITY) do...

...rote: > > > >> I know it's part of test-suite/external, but this constant fold code has > >> been around 5+ years. Was the bug lying dormant all this time, only visible > >> on PPC, or something else? > > > > My guess would be that people don't tend to run with -ffast-math (it's > > got a reputation for breaking code, even ignoring this particular > > issue). Without that, from what I can see the issue won't arise. > > If this can really only happen under fast-math, I take back what I said entirely. IIRC, NaNs are e...

Dear R people The function below should be decreasing, convex, and tend to zero when x tends to infinity. curve((1-pnorm(x))/dnorm(x),from=0, to=9) >From the plot we see that for x between 8.0 and 8.3 the function is fluctuating. As far as I understand, this is due to the function pnorm() not being sufficiently accurate in the tails. I am using pnorm() in a way...

The wiki says: > Each mailbox has its own separate index files. **If the index files are disabled**, the same structures are still kept in the memory, except cache file is disabled completely (because the client probably won't fetch the same data twice within a connection). [1] I tend to grep my maildirs quite often, and use the output to cp emails to other folders, so it's annoying when the dovecot.index.cache files show up in the results. How do I disable the index files, please? My mail server is hardly loaded, so I don't think it'll be a problem to keep the ca...

...a target and would likely be included in scanning tools. A custom OS running on a PBX might also have vulnerabilities, but it's also probably not a big target because of the diversity of systems out there and relative limited utility one would have if such a system were compromised. That you tend to tend to think of it as an "appliance" running the phone system does not change the fact that it's actually a full-blown server OS with the same issues as other servers. But if you're not connected to the Internet none of of this means anything. CentOS/Asterisk *would* be an a...

...than when z = B (see attached figure). In fact x and y are two (correlated) predictor variables and z is a categorical response variable that x and y affect. I would like to use R to make some statistical test to show that you seem to get z = A when the value of x is much less than y, while you tend to get z = B when x is approximately the same as y. Can anybody tell me what I should be doing? I tried a logistic regression: > glm1 <- glm(z ~ y + x,family=binomial(),trace=T) which gives Pr(>|z|) < 0.01 for both x and y, but I'm not sure if this is valid to do, since x and y are...

...shr 8; >> %2 = %1 and 255; > > This looks fine. > > > Why can't we expect InstCombine to simplify this to an 8 bit load, > assuming each of %0 and %1 has only one use ? > > We don't aggressively narrow loads and stores in IR because it tends to block other optimizations. See https://reviews.llvm.org/D30416. -Eli -- Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -------------- next part -------------- An HTML attachment was s...

...ven't > seen any tangible performance improvement. > > Is gluster different ? Probably not. If there is, it would probably favor XFS. The developers at Red Hat use XFS almost exclusively. We at Facebook have a mix, but XFS is (I think) the most common. Whatever the developers use tends to become "the way local filesystems work" and code is written based on that profile, so even without intention that tends to get a bit of a boost. To the extent that ZFS makes different tradeoffs - e.g. using lots more memory, very different disk access patterns - it's probably goi...

...s(+), 2 deletions(-) diff --git a/tools/virtio/ringtest/run-on-all.sh b/tools/virtio/ringtest/run-on-all.sh index 52b0f71..0177d50 100755 --- a/tools/virtio/ringtest/run-on-all.sh +++ b/tools/virtio/ringtest/run-on-all.sh @@ -3,10 +3,10 @@ #use last CPU for host. Why not the first? #many devices tend to use cpu0 by default so #it tends to be busier -HOST_AFFINITY=$(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n|tail -1) +HOST_AFFINITY=$(lscpu -p | tail -n 1 | cut -d',' -f1) #run command on all cpus -for cpu in $(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n); +for cpu in $(seq 0...

...s(+), 2 deletions(-) diff --git a/tools/virtio/ringtest/run-on-all.sh b/tools/virtio/ringtest/run-on-all.sh index 52b0f71..0177d50 100755 --- a/tools/virtio/ringtest/run-on-all.sh +++ b/tools/virtio/ringtest/run-on-all.sh @@ -3,10 +3,10 @@ #use last CPU for host. Why not the first? #many devices tend to use cpu0 by default so #it tends to be busier -HOST_AFFINITY=$(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n|tail -1) +HOST_AFFINITY=$(lscpu -p | tail -n 1 | cut -d',' -f1) #run command on all cpus -for cpu in $(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n); +for cpu in $(seq 0...

...hat the par(new=TRUE) statement actually does. (It would be interesting to receive an answer also from those who meanwhile reached an expert status in working with the R syntax). Perhaps my confusion is due to the fact that I am a trained right-handed that really is a left-handed (those people tend to mistake contrasts). If there are a lot of people having this difficulty, I would like to know why the decision was made to define the mode of action of the par(new=TRUE) statement as it is now. Perhaps that helps me to understand better the way programmers tend to think. *******************...

hi all, i use sortables in a project, and it seems to have the following issue in IE6: while and after dragging the background pictures vanish... a simplified demo can be found here: http://files.caillou.ch/script.aculo.us/ i searched in the group, but couldn''t seem to find a solution. does anyone have a suggestion? greetz ... caillou

Folks, After looking at git / svn logs for a long time today, I realised that the commit messages could be a bit more helpful for that purpose (logs). The kernel has a good policy on commit messages, and I think we could use some of that, at least as a strong guideline, not as a hard rule. The idea, AFAIK, is to have a title with 50 chars, separated by an empty line and an infinite number of

...ee an exploded list of the basic types (e.g. i8, i8, i32, ...) and have to classsify them individually. This is usually too simplistic to model a real C ABI, so it's not used much. But LLVM does have to give it some meaning because it's still a legitimate IR function. The result is that you tend to get the arguments out again if everything is consistent, but where they actually get passed is a bit random. A byval parameter is usually used to model a struct that gets passed on the stack; the target sees the size & alignment constraints, but not each individual sub-type. This is often a...

> I know it's part of test-suite/external, but this constant fold code has > been around 5+ years. Was the bug lying dormant all this time, only visible > on PPC, or something else? My guess would be that people don't tend to run with -ffast-math (it's got a reputation for breaking code, even ignoring this particular issue). Without that, from what I can see the issue won't arise. But that doesn't account for complete silence, it must happen occasionally. Cheers. Tim.

...y-do-some-unicode-characters-display-in-matrices-but-not-data-frames-in-r > (both of these came up when I googled the subject line of your email). Yes, but it is a bug, just a hard one to fix. It needs someone to dedicate a serious amount of time to deal with it. Since most of the people who tend to do that generally use systems in UTF-8 locales where this isn't a problem, or don't use Windows, it is languishing. Duncan Murdoch > > Best, > Ista > On May 25, 2015 9:39 AM, "Richard Cotton" <richierocks at gmail.com> wrote: > > > Here's a dat...

Anyone made some performance comparison between XFS and ZFS with ZIL on SSD, in gluster environment ? I've tried to compare both on another SDS (LizardFS) and I haven't seen any tangible performance improvement. Is gluster different ?