similar to: loops in R - about inefficiency

Displaying 20 results from an estimated 5000 matches similar to: "loops in R - about inefficiency"

2009 Mar 04
2
Multivariate GARCH Package
Good day everyone,   I tried to find a multivariate GARCH package and failed to find one. Although when I searched R I found the following link which describes the package:   http://www.r-project.org/user-2006/Slides/Schmidbauer+Tunalioglu.pdf   can any one help me with this issue.   Thank you in advance [[alternative HTML version deleted]]
2010 Apr 15
0
Any GARCH-in-mean Implementation?
Dear All, Is there any GARCH-M implementation in R? I checked tseries and fGarch packages and could not find yet. Thanks in advance and Kind Regards, Vehbi Sinan -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 261 bytes Desc: OpenPGP digital signature URL:
2005 Sep 21
2
MGARCH estimation
Hi R-users Can the users let me know how to do MGARCH estimate (Bivariate GARCH) and volatility forecast for 2 variables in R. thanks and regards snvk
2020 Aug 28
1
Slow Samba AD DC performance compared to Microsoft AD DC
Sorry I forgot to mention. We use FreeIPA for SSH login. >Thanks for the information. > >I know this is kinda out of topic but is it possible to use samba with ipa client from another domain? > >It is probably broke both Samba and FreeIPA client. > >Our servers run a different domain with FreeIPA. Samba domain is domain.com, FreeIPA domain is domain.cloud > >I know
2011 Feb 17
1
Cannot execute memdisk
Hello everyone, this is my first mail. I am trying to pxe boot an ISO CD. I configured DHCP and TFTP. In DHCP config file I define the boot folder as filename "pxelinux.0"; In TFTP config file in /tftpboot/pxelinux.cfg/default I wrote the boot option as LABEL ccc LINUX memdisk INITRD ccc.iso APPEND raw Now I have some problems and parts I don't understand. 1) I downloaded and
2020 Aug 28
4
Slow Samba AD DC performance compared to Microsoft AD DC
Hello again, I decided to upgrade. However, my method of doing upgrade is transferring files of 14.04 Samba to new 18.04 Samba Server with version 4.7.6. The files under /etc/samba, /var/lib/samba and /etc/krb5.conf. I actually test the upgrade only replPropertyMetaData has error in database and db-check fixed it. I also checked the logs there was no problem. It looks like it is working. Is
2005 Jul 27
5
HOW to Create Movies with R with repeated plot()?
Dear R-helpers, Is it possible to create a type of 'movie' in R based on the output of several figures (e.g., jpegs) via the plot() function. I obtained dynamic results with the plotting function and would like to save these as a movie (e.g., avi or other formats)? Regards, Jan _________________________________________________________________ Ir. Jan Verbesselt Research
2017 Nov 27
1
[PATCH V3 10/29] drm/nouveau: deprecate pci_get_bus_and_slot()
pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as where a PCI device is present. This restricts the device drivers to be reused for other domain numbers. Getting ready to remove pci_get_bus_and_slot() function in favor of pci_get_domain_bus_and_slot(). Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot() and extract the domain number from 1. struct pci_dev 2.
2017 Dec 19
1
[PATCH V4 09/26] drm/nouveau: deprecate pci_get_bus_and_slot()
pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as where a PCI device is present. This restricts the device drivers to be reused for other domain numbers. Getting ready to remove pci_get_bus_and_slot() function in favor of pci_get_domain_bus_and_slot(). Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot() and extract the domain number from 1. struct pci_dev 2.
2017 Aug 22
1
NTP traffic blocked
I have multiple VM's on the same KVM host. One of the VM's is running NTP. All VM's can reach eachother, no firewall in between. But the problem is, the VM's cannot communicate over port 123/udp to the NTP VM. Network: 172.24.100.0/22 KVM: 172.24.101.50 VM ntp: 172.24.102.10 VM foo: 172.24.102.20 1. On the NTP server, listen for any incoming packets from VM foo
2020 Aug 27
2
Slow Samba AD DC performance compared to Microsoft AD DC
Lookup in the Windows setup where indexing is applied. And, upgrade you os +samba (as Rowland also said). Indexing on ad-object greatly improved in later samba versions. ldbsearch -H "$(samba -b|grep PRIVATE_DIR |awk '{ print $NF }')/sam.ldb" -s base -b @INDEXLIST Will show you the index one's in samba. Greetz, Louis > -----Oorspronkelijk bericht----- >
2017 Nov 27
0
[PATCH V3 10/29] drm/nouveau: deprecate pci_get_bus_and_slot()
+nouveau at lists.freedesktop.org On 11/27/2017 11:57 AM, Sinan Kaya wrote: > pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as > where a PCI device is present. This restricts the device drivers to be > reused for other domain numbers. > > Getting ready to remove pci_get_bus_and_slot() function in favor of > pci_get_domain_bus_and_slot(). > >
2012 Sep 03
1
Possible page inefficiency in do_matrix in array.c
In do_matrix in src/array.c there is a type switch containing : case LGLSXP : for (i = 0; i < nr; i++) for (j = 0; j < nc; j++) LOGICAL(ans)[i + j * NR] = NA_LOGICAL; That seems page inefficient, iiuc. Think it should be : case LGLSXP : for (j = 0; j < nc; j++) for (i = 0; i < nr; i++) LOGICAL(ans)[i + j * NR] = NA_LOGICAL; or more simply : case
2011 Apr 25
1
[LLVMdev] Inefficiency in Intrinsic::getName in Function.cpp?
I was looking over Function.cpp and saw that for every call to Intrinsic::getName, the entire intrinsic table (about a thousand references to strings) gets copied over for the initialization of Table. Is there a reason for why this is done, or would it be better for Table to be static, so that this initialization only happens on the first call? Perhaps this is optimized away for the release build,
2009 Oct 07
1
Possible inefficiency in encode.c
Hi, I am very new to Theora, having just started working through the code a few weeks ago. I am working on a requantization tool to reduce bit rates, hopefully on the fly, for some video conferencing work. As I was working through the encoding phase I noticed this line in encode.c: for(ti=_enc->dct_token_offs[pli][zzi];ti<ndct_tokens;ti++){ It's around line 804, but I am
2019 Feb 04
0
Inefficiency in df$col
On 04/02/2019 9:20 a.m., Radford Neal wrote: >>> I think you might want to just delete the definition of $.data.frame, >>> reverting to the situation before R-3.1.0. >> >> I imagine the cause is that the list version is done in C code rather >> than R code (i.e. there's no R function `$.list`). So an alternative >> solution would be to also implement
2019 Feb 04
0
Inefficiency in df$col
>>>>> peter dalgaard >>>>> on Mon, 4 Feb 2019 16:48:12 +0100 writes: > Does either of you have a patch against current R-devel? > I tried the obvious, but the build dies with > building package 'tools' > all.R is unchanged > ../../../../library/tools/libs/x86_64/tools.so is unchanged > installing
2008 Apr 24
0
[LLVMdev] FoldingSetNodeID operations inefficiency
Hi Chris, This is a good idea and I started thinking in that direction already. But what I don't quite understand the TFs, how TFs are formed and which rules they should obey to. For example now: > PendingLoads created by the SelectionDAGLowering::getLoadFrom and then copied into the > TokenFactor node by SelectionDAGLowering::getRoot called from the >
2019 Feb 03
1
Inefficiency in df$col
While doing some performance testing with the new version of pqR (see pqR-project.org), I've encountered an extreme, and quite unnecessary, inefficiency in the current R Core implementation of R, which I think you might want to correct. The inefficiency is in access to columns of a data frame, as in expressions such as df$col[i], which I think are very common (the alternatives of
2008 Apr 23
1
[LLVMdev] FoldingSetNodeID operations inefficiency
Hi, While profiling LLVM using my test-cases with huge MBBs, I noticed that FoldingSetNodeID operations (ComputeHash,insertion,etc) may become really inefficient for the nodes, which have very many operands. I can give you an example of what is meant by "very many". In my test-case (you can fetch it from here http://llvm.org/bugs/attachment.cgi?id=1275), which is just one HUGE MBB