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Hi all, I have the following problem, best expressed by my present solution: # p is a vector myfunc <- function (p) { x[1] <- p[1] for (i in c(2:length(p))) { x[i] <- 0.8*p[i] + 0.2*p[i-1] } return (x) } That is, I'm calculating a time-weighted average. Unfortunately the scale of the problem is big. length(p) in this case is such that each call takes about 6

...us" configuration. Suppose you buy the hardware to build such a pool. Two years go by, and you want to grow the pool. Changes in drive size, hardware, cpu, etc will be such that it won't be possible (or sensible) to buy the same exact hardware, sized drives, etc... A heterogeneous pool is unavoidable. Is there a general case solution for this problem? Is something planned to deal with this problem? I can only think of a few specific corner case solutions. Another problem that comes to mind is ensuring that the older slower servers don't act as bottlenecks to the whole pool. jdarcy had men...

...s(19,lambda=0.9)<ppois(18,lambda=0.9) >> [1] TRUE >> >> Which could not be TRUE. > This is just another manifestation of > > 0.1 * 3 > 0.3 > #> [1] TRUE > > This discussion returns to this list from time to time. TLDR; this is > not an R issue, but an unavoidable floating point issue. Well, here the request may be interpreted not as "do it without round error" which is indeed unavoidable but rather "please cope with rounding errors in a way that return consistent result for ppois()". You have indicated one way to do so (I have just ad...

.... This script is obviously broken, but gets accepted by sievec and only fails later, at runtime with line X: error: found stray carriage-return (CR) character in quoted string started at line X. So, the question is whether line breaks in strings are allowed in general and the runtime error is unavoidable, or should sievec return an error? Best regards, Thorsten -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20180528/5a27d17e/attachment.html>

Dear list I'm not sure whether this is a bug or an unavoidable consequence of the way packages are loaded, but there can be surprising side effects of calling a function via package::function. Here's an example using the formula.tools package: form <- a ~ b as.character(form) formula.tools::lhs(form) as.character(form) The first call to as.characte...

function ppois is a function calculate the CDF of Poisson distribution, it should generate a non-decreasing result, but what I got is: > any(diff(ppois(0:19,lambda=0.9))<0) [1] TRUE Actually, > ppois(19,lambda=0.9)<ppois(18,lambda=0.9) [1] TRUE Which could not be TRUE. Code is tested in both R 3.5.1 and Microsoft R Open 3.5.1. _

...I'm not happy about it. > I didn't use this way because I don't want to include 'virtio-balloon.h' in page_alloc.c, > or copy the define of this struct in page_alloc.c > > Thanks! > Liang It's not good that virtio format seeps out to page_alloc anyway. If unavoidable it is not a good idea to try to hide this fact, people will assume they can change the format at will. -- MST

...I'm not happy about it. > I didn't use this way because I don't want to include 'virtio-balloon.h' in page_alloc.c, > or copy the define of this struct in page_alloc.c > > Thanks! > Liang It's not good that virtio format seeps out to page_alloc anyway. If unavoidable it is not a good idea to try to hide this fact, people will assume they can change the format at will. -- MST

...ts notified, which prevents idle people from piling onto to the conversation. >> > > Watchers of the repo get the comments (just like pull-requests). > > I suspect that moving to a system where people are watching the repository instead of subscribing to the mailing-list is likely unavoidable at some point. Then again, watching the repository will ultimately be like subscribing to llvm-commits, won't it? How many people do _that_ and actually track what happens? I personally can't imagine doing that without some serious automatic filtering... Cheers, Nicolai > > -- &gt...

Hi, I was unable to find a bug report for this with a cursory search, but would like clarification if this is intended or unavoidable behaviour: ```{r} # Create example data.frames parents <- data.frame(name=c("Sarah", "Max", "Qin", "Lex"), sex=c("F", "M", "F", "M"), age=c(41, 43, 36, 51)) children <-...

...ive different results when compiled at different "-O<...>" settings with the exception of "-Ofast". > > Pretty much. In particular, imagine a user trying to debug an unexpected floating point result caused by conversion of a*b + c into fma(a, b, c). I think that’s unavoidable, because of the way the optimization levels work. Even fma contraction is on by default (something I’d like to see), at -O0, we wouldn't be doing contraction for: auto x = a*b; auto y = x+c; but we would do that at -O2 since we do mem2reg on x. -Chris -------------- next part -------------...

...lient isn't all this so expensive to spawn a new shell session which spawns a mysql client?) Anyone knows how to use this flag with postfix *making postfix send special reject* "user over quota" note instead of plain SMTP reject?? Is an additional database lookup (restriction class?) unavoidable? :( TIA1 PS Looks like it is tricky almost impossible to make postfix do rejects based on this flag for aliases. (Special query would be a little messy for our schema but i dunno at what point postfix resolves aliases?)

Friends. I cannot simplify this much, and I think the loop is unavoidable. As a recovering C programmer I want to avoid loops and in cases like this I almost allways can by using an apply function. But I suspect in this case there is nothing I can do. It is a finance example where a price series is compared to a moving average. If the price goes above the average, pl...

...errors when it is seen. But before we do that, we need a solid replacement. - There are some other crashes that appear to be unrelated, also with C++ code. - There are some subtle differences in arithmetic that result in tests failing. These may be due to bugs in MinGW-w64 code, or may be unavoidable. Duncan Murdoch

Hi Tanya, On darwin9, the binaries in the darwin10 packages give: $ /opt/clang+llvm-2.7-i386-darwin10/bin/llvm-as --help dyld: unknown required load command 0x80000022 Trace/BPT trap That could be unavoidable, of course. Also, could you document what build mode the packages use (or release both Debug and Release-Asserts packages)? Since +Asserts and -Asserts have different ABIs, I'd have to write a test to figure out how I should compile Unladen Swallow. Thanks, Jeffrey

...M, Jeffrey Yasskin <jyasskin at google.com> wrote: > Hi Tanya, > > On darwin9, the binaries in the darwin10 packages give: > > $  /opt/clang+llvm-2.7-i386-darwin10/bin/llvm-as --help > dyld: unknown required load command 0x80000022 > Trace/BPT trap > > That could be unavoidable, of course. > > Also, could you document what build mode the packages use (or release > both Debug and Release-Asserts packages)? Since +Asserts and -Asserts > have different ABIs, I'd have to write a test to figure out how I > should compile Unladen Swallow. > > Thanks, &g...

In XenMon''s file appending mode, a lot of times I''ll get a strange first data point, e.g., the cpu% for dom0 will be 99.9 but the rest of the readings will be 19-21 which are sane for the run. I''ve been throwing the data point out, but was curious about it. Is it unavoidable? Thanks, Tim _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...asily diagnosed and afforded without security risks and with access failure as a clear feedback). A possible alternative is to map only FILE_READ_DATA to Unix Read and to map Unix Read to FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES. This lead to a lesser security exposure (that however is unavoidable taken for granted Unix RWX security model) I'm missing something?

...erious why x was bound to the apparently arbitrary value 0 while y was left at its default. The ... arguments to bar seems to be ignored altogether. bar(10), bar(10,x=3), and bar(10,3,4) give the same result. Furthermore, bar(10,extra=3) does not give an error. Perhaps this mysterious behavior is unavoidable because of the kind of hack replicate is? Thanks ...

This amusing behaviour is from R2.6.1 on WinXP Pro SP2 running with boot.in= i /3GB flag, exploring memory limits. =20 When actual (object, not total) memory usage hits 2048 MB, memory.size star= ts counting down again, but reports a negative amount, e.g. -2046.333. Is t= his an intended (or unavoidable) feature?) =20 Thanks, =20 Rory Bowden bowden at stats.ox.ac.uk =20 [[alternative HTML version deleted]]