search for: contiguous

Displaying 20 results from an estimated 1499 matches for "contiguous".

2008 Jul 18
2
source code functions
>na.contiguous function (object, ...) UseMethod("na.contiguous") <environment: namespace:stats> this is what I get when I look for the source code for some functions- Is there a way to look at the source code? -- Let's not spend our time and resources thinking about things that are so litt...
2010 May 12
1
ranges and contiguity checking
Hi All, I am interfacing to some C libraries (hdf5) and I have methods defined for '[', these methods do hyperslab selection, however, currently I am limiting slab selection to contiguous blocks, i.e., things defined like: i:(i+k). I don't do any contiguity checking at this point, I just grab the max and min of the range and them potentially do an in-memory subselection which is what I am definitely trying to avoid. Besides using deparse, I can't see anyway to figure out tha...
2023 Jun 01
1
bug in na.contiguous? Doesn't give the first tied stretch if it is at the start
Hi. The description of na.contiguous says: "Find the longest consecutive stretch of non-missing values in a time series object. (In the event of a tie, the first such stretch.)" But this seems not to be the case if one of the tied longest stretches is at the start of the sequence/series. In the following example...
2012 Jan 31
1
Selecting contiguous, irregularly-shaped sets of values from arrays
All, I am attempting to select all of the contiguous elements of a matrix that meet some criterion. I.e., values that would be contained within an irregular area defined by a "contour" applied around point of interest. So, if I have a matrix x as follows: > x <- matrix(rnorm(25), nrow=5, ncol=5, dimnames=list(c("A"...
2012 Jan 06
2
Dropping columns from data frame
How does R do it, and should I ever be worried? I always remove columns by index, and it works exactly as I would naively expect - but HOW? The second illustration, which deletes non contiguous columns, represents what I do all the time and have some trepidation about because I don't know the mechanics (e.g. why doesn't the column formerly-known-as-4 become 3 after column 1 is dropped: doesn't vector removal from a df/list invoke a loop in C?). Can I delete a named list of co...
2007 Feb 16
2
cluster analysis under contiguity constraints with R ?
Hello, I would like to know if there is a function in an R library that allows to do cluster analysis under contiguity constraints ? Thank you very much for your answer ! Lise Bellanger -- Lise Bellanger, Universit? de Nantes D?partement de Math?matiques, Laboratoire Jean Leray UMR CNRS 6629 2, Rue de la Houssini?re BP 92208 - F-44322 Nantes Cedex 03 T?l. : (33|0) 2 51 12
2013 Nov 11
2
drm/nouveau contiguous bo check produces lots of output
op 11-11-13 16:31, Jerry Cooperstein schreef: > Hi: > > commit bd9c5a2016307164c419c5e24a46921c10e620a0 > > (drm/nouveau: require contiguous bo for framebuffer) > produces about 2000 lines of > > nouveau E[ DRM] framebuffer requires contiguous bo > > on system boot and more on shutdown, but I don't see other > negative effects. I tried deploying a trivial patch removing the check and saw > no other problems...
2004 Mar 03
4
heavily fragmented file system.. How to defrag it on-line??
Hi, all, I got machines running continuously for long time, but then the underlying ext3 file systems becomes quite heavily fragmented (94% non-contiguous). We just don't have a chance to shutdown the machines since they are always busy.. I tried the defrag 0.70 version comes with e2fsprog package and standalone 0.73 packages, but neither help me since the defrag tool can not handle ext3. A thrid-party commercial tool oodcmd doesn't help...
2013 Jul 15
1
[PATCH] xen/arm: Dummy implementation of multi-bank support
U-boot for the arndale board splits the memory in 8 contiguous banks and rewrites the memory node. So most of the memory is lost. As the frametable is only able to handle contiguous memory, use the first contiguous banks and warn if some of the memory banks are not used. Signed-off-by: Julien Grall <julien.grall@linaro.org> --- xen/arch/arm/setup.c |...
2013 Nov 11
0
drm/nouveau contiguous bo check produces lots of output
op 11-11-13 17:05, Jerry Cooperstein schreef: > On 11/11/2013 09:57 AM, Maarten Lankhorst wrote: >> op 11-11-13 16:31, Jerry Cooperstein schreef: >>> Hi: >>> >>> commit bd9c5a2016307164c419c5e24a46921c10e620a0 >>> >>> (drm/nouveau: require contiguous bo for framebuffer) >>> produces about 2000 lines of >>> >>> nouveau E[ DRM] framebuffer requires contiguous bo >>> >>> on system boot and more on shutdown, but I don't see other >>> negative effects. I tried deploying a trivial patch r...
2013 Nov 11
0
drm/nouveau contiguous bo check produces lots of output
On 11/11/2013 09:57 AM, Maarten Lankhorst wrote: > op 11-11-13 16:31, Jerry Cooperstein schreef: >> Hi: >> >> commit bd9c5a2016307164c419c5e24a46921c10e620a0 >> >> (drm/nouveau: require contiguous bo for framebuffer) >> produces about 2000 lines of >> >> nouveau E[ DRM] framebuffer requires contiguous bo >> >> on system boot and more on shutdown, but I don't see other >> negative effects. I tried deploying a trivial patch removing the check and sa...
2011 Jul 19
3
[LLVMdev] speculative parallelization in LLVM
...o take advantage of this. In case it is not, the instrumentation code will detect this at runtime and simply roll back to the original version. I will always keep an original version available, in addition to the ones I modify with Polly. However, initially I will speculate that it is allocated contiguously. Thanks, Alexandra ________________________________ From: Renato Golin <rengolin at systemcall.org> To: Jimborean Alexandra <xinfinity_a at yahoo.com> Cc: Tobias Grosser <tobias at grosser.es>; llvmdev at cs.uiuc.edu Sent: Tue, July 19, 2011 11:39:02 AM Subject: Re: [LLVMde...
2008 Mar 11
1
How to generate a vector of counts i.e. the number of rows that are contiguous
Hi, I have a 3 columns data and need to generate a vector of counts. These counts are the number of rows that are contiguous. It looks easy for manual counting, but to turn it algorithmic really split my head. For example, 11 (i.e. 18004 to 180014), 1 (i.e., 18017), 7 (i.e., 18060 to 18064) 18004 10314568 0.5205757 18005 10333837 0.5135572 18006 10566333 0.5111271 18007 10566624 0.8196611 18008 10566629 0.8172404...
2010 Oct 08
1
conditional replacement of contiguous values
...E 5 FALSE TRUE 6 FALSE TRUE 7 FALSE FALSE 8 FALSE FALSE 9 FALSE FALSE 10 TRUE TRUE 11 FALSE TRUE 12 FALSE TRUE 13 FALSE TRUE -- View this message in context: http://r.789695.n4.nabble.com/conditional-replacement-of-contiguous-values-tp2968727p2968727.html Sent from the R help mailing list archive at Nabble.com.
2010 Sep 09
37
resilver = defrag?
A) Resilver = Defrag. True/false? B) If I buy larger drives and resilver, does defrag happen? C) Does zfs send zfs receive mean it will defrag? -- This message posted from opensolaris.org
2007 Mar 16
2
Duplicated non contiguous element in a list
Hello, Given a vector I would like to rapidly identify duplicated non contiguous elements. Given for example c(1, 1, 2, 3, 2, 4, 5, 6, 4) I would like to get: FALSE FALSE TRUE FALSE TRUE TRUE FALSE FALSE TRUE In fact I need to check this on the columns of a matrix! I can do that of couse with loops but is there any function already available? Thanks ---...
2012 Sep 20
3
lattice dotplot reorder contiguous levels
...t(log=10), y = list(relation = "free")), layout=c(1,5), strip=FALSE, strip.left=TRUE ) my objective is to use ?site? as conditioning variable but with ?samp.time? correctly grouped by ?site?; the problem here is to ensure that levels of ?samp.time? within each ?site? are contiguous as otherwise they would be not contiguous in the dot plot itself (i.e, avoid that sort of holes in between y axis categories -see dotplot -) I?ve been trying with this but without much success test$samp.time.new<- with(test,reorder(samp.time,as.numeric(site))) dotplot(samp.time.new~conc|s...
2012 Oct 12
13
Dom0 physical networking/swiotlb/something issue in 3.7-rc1
...onrad, The following patch causes fairly large packet loss when transmitting from dom0 to the physical network, at least with my tg3 hardware, but I assume it can impact anything which uses this interface. I suspect that the issue is that the compound pages allocated in this way are not backed by contiguous mfns and so things fall apart when the driver tries to do DMA. However I don''t understand why the swiotlb is not fixing this up successfully? The tg3 driver seems to use pci_map_single on this data. Any thoughts? Perhaps the swiotlb (either generically or in the Xen backend) doesn'...
2008 Mar 16
2
Filesystem fragmentation and scatter-gather DMA
When designing a filesystem, is fragmentation really an issue if access to the disk can be done using scatter-gather DMA techics ?
2010 Sep 02
3
[patch] O_DIRECT: fix the splitting up of contiguous I/O
Andrew, can you please send this on to Linus and -stable ASAP? It's causing massive problems for our users. On Thu, Aug 12, 2010 at 04:50:59PM -0400, Jeff Moyer wrote: > Hi, > > commit c2c6ca4 (direct-io: do not merge logically non-contiguous > requests) introduced a bug whereby all O_DIRECT I/Os were submitted a > page at a time to the block layer. The problem is that the code > expected dio->block_in_file to correspond to the current page in the > dio. In fact, it corresponds to the previous page submitted via > su...