search for: effeciently

Displaying 20 results from an estimated 34 matches for "effeciently".

2004 Jul 06
3
Improving effeciency - better table()?
Hi, I've been running some simulations for a while and the performance of R has been great. However, I've recently changed the code to perform a sort of chi-square goodness-of-fit test. To get the observed values for each cell I've been using table() - specifically I've been using cut2 from Hmisc to divide up the range into a specified number of cells and then using
2010 May 26
4
More efficient way to use ifelse()?
# This is more about trying to find a more effecient way to code some simple vectorized computations using ifelse(). # Say you have some vector representing a factor with a number of levels (6 in this case), representing the location that samples were collected. Population <- gl( n=6, k=5,length=120, labels =c("CO", "CN","Ga","KO", "Mw",
2009 Mar 11
2
How to monthly,daily,yearly average
Sorry, this is my first time to post. I have a big data set: first colume is date (ex: 2008-2-150, the second is time (10:30:00), and the following columes are variaty measurement data. Every 30 min, I have one data. I want to find an effecient way to calculate the hourly, daily, monthly and yearly average, and plot them, and eventually use these average data to do further analysis. Thanks!
2011 Nov 06
2
how to use quadrature to integrate some complicated functions
..._n). Here n is about 5000, Phi is the cumulative distribution function of standard normal, phi is the density function of standard normal, and x ranges over (-infty,infty). My idea is to to use quadrature to handle this integral. But since Phi has not cloaed form, I don't know how to do this effeciently. I appreciate very much if someone has any ideas about it. Thanks! Jeff -- View this message in context: http://r.789695.n4.nabble.com/how-to-use-quadrature-to-integrate-some-complicated-functions-tp3996765p3996765.html Sent from the R help mailing list archive at Nabble.com.
2008 Oct 03
4
fxp performance with POLLING
Hello again :) With POLLING enabled I experience about 10%-25% performance drop when copying files over network. Tested with both SAMBA and NFS. Is it normal? FreeBSD 7.1-PRERELEASE #0: Sat Sep 6 01:52:12 CEST 2008 fxp0: <Intel 82801DB (ICH4) Pro/100 Ethernet> port 0xc800-0xc83f mem 0xe1021000-0xe1021fff irq 20 at device 8.0 on pci1 # ifconfig fxp0 fxp0:
2004 Aug 06
1
speex on a DSP chip?
We are bellow 30MIPS for our 16bit single MAC fixed point DSP. 8khz/8kbps I aggree with Jean-Marc that MIPS is dependent from the target DSP, but it's a very good indication when you compare same architecture DSPs. It is very difficult (impossible) to use effecient a DSP using only c. George ----- Original Message ----- From: "Andre Borrelly" <andre@myavalaunch.com> To:
2002 Nov 13
4
Speed tests
Hi all I hope no one minds but I was asked to post my timetrial findings back to the list. Hope it helps someone else as well, if you have any suggestions please mention them as I need all the speed that I can get The scenaro is as follows I have to switch mail servers and I need to copy all my mbox files over to the new machine. As you may well know time if off the utmost importance so I
2017 Nov 19
2
Rsync to just upload new/updated files without comparing source/destination
...e 2. Upload new/updated files 3 Remove source file As per your comment, rsync will compare after uploading to check if files are identical ? Additionally i don't expect to delete directories as i want to maintain same directory structure on source. Any insights on if following query will work effeciently for adding new files to destination rsync --remove-source-files -av -r <Source Root Folder> ssh abc at destination.com:<Destination Root Folder> Assuming 5 TB of data available at destination and source has about 50 files (New or Updated i.e. files with same name and in same folder), s...
2007 Oct 01
6
reducing file list bytes transferred
Hello, This is my first posting to the rsync list. I mirror a database containing directories which contain a very large number of files (say 30,000), and sending the file list can often take longer than transferring the new files. (Rsync ends up sending nearly the same file list on every transfer, with only the addition of a few new files.) Has the rsync team considered an rsync option
2002 Oct 31
1
Problems with rsync on Unix->Non-Unix Kernel Transfers...
Howdy... I have been doing some reading of the rsync technical report, rsync man page, and the rsync web site, and I have learned allot, but having a high IQ does help. I have read the rsync, and rsyncd.conf man pages in regards to the switches, settings, etc., and summized that rsync is specifically designed for copying files between Unix kernel systems, regardless of flavor, platform, or
2012 Feb 27
5
macro function
hi, I know how to use the "for" loop function like: for(i in 1:ncol(mat)){ mat[i]<-b[i,2] } but, in this case r1<-b[1,1] r2<-b[2,1] r3<-b[3,1] r4<-b[4,1] * * * r3002<-b[3002,1] r3003<-b[3003,1] - must make vectors how should I make a efficient code for that? Is there anything in R like SAS MACRO function? Please help me. -- View this message in context:
2004 Aug 05
7
Does Ogg Vorbis support 5.1 surround?
Hello everyone! Please bear with me, I am a complete audio-newbie, and I apologise if I am asking a question that I should know. As most of you all know, DVD's have 5.1 audio, and I want to preserve that in my voribs files. So, to ask the question : Does it support Surround sound? Thank you very much!
2006 Feb 23
11
Sessions question
Hi, I''m a little confused about sessions. I have two objects, object "Apple" and object "Banana". These two objects have an N:M relationship. What I am doing is listing All of the Banana objects that are associated with a single Apple, then below that listing all of the Banana objects not associated with that same Apple. The user is then allowed to change the
2016 Mar 22
1
status of https://wiki.centos.org/Documentation
On Tue, Mar 22, 2016 at 10:45 AM, Fabian Arrotin <arrfab at centos.org> wrote: > On 22/03/16 10:21, Fran?ois Cami wrote: >> On Tue, Mar 22, 2016 at 10:12 AM, Manuel Wolfshant >> <wolfy at nobugconsulting.ro> wrote: >>> On 03/22/2016 09:30 AM, Fabian Arrotin wrote: >>>> >>>> Hi, >>>> >>>> I was having a look at that
2017 Nov 19
0
Rsync to just upload new/updated files without comparing source/destination
...ove source file > > As per your comment, rsync will compare after uploading to check if files > are identical ? > > Additionally i don't expect to delete directories as i want to maintain same > directory structure on source. Any insights on if following query will work > effeciently for adding new files to destination > rsync --remove-source-files -av -r <Source Root Folder> ssh > abc at destination.com:<Destination Root Folder> > > Assuming 5 TB of data available at destination and source has about 50 files > (New or Updated i.e. files with same na...
2020 Nov 08
0
How to make generator and receiver processes strictly sequential?
Hi all, I have one server hosting virtual machines and one older NAS Synology DS1512+ used as backup target for those virtual machines. The NAS uses BTRFS for its internal storage because I want to use compression and at best make effecient use of snapshots. When using "--inplace --whole-file" the backup succeeds in ~2 hours, which is OK to fit into avarious historically grown time
2003 Jun 21
0
how to get a probit scale in R?
Hi, If you plot a cumulative histogram of a gausian distribution, using a log scale on the x-axis and a probit scale on the y-axis, you get a straight line. My question is whether it is possible in R to use a "probit" scale in a "plot". For example on the following webpage you can see an application of how I would like to use a probit scale:
2003 Sep 26
0
Peeling (was RE: streaming)
> From: Beni Cherniavsky [mailto:cben@users.sf.net] > Sent: 26 September 2003 10:35 > To: vorbis@xiph.org > Subject: Re: [vorbis] streaming > > - Vorbis is designed to allow "peeling": if you truncate packets, you > still get a legal Vorbis stream but with lower quality. This should > allow very effecient streaming of multiple bitrates from the same >
2007 Apr 13
1
How can i add multiple callerids to an inbound route?
Hi, I have configured the below things: Extensions Trunk Outbound route Inbound route IVR Ring group If anybody call to my DID number, my IVR is responded. After that, if he press 1, then Ring group will be activated. All are working fine. My Problem: I want to avoid IVR for some phone numbers depends on their called IDs. If my common users will call to my DID
2011 Jan 24
0
[LLVMdev] How to change the type of an Instruction?
...r tree and process each node breadth first). Convert all of the instructions in each basic block (except phis). c) Revisit all the phis and plug in their new operands. 3) Delete all the old instructions. This is a variation of the SSA construction algorithm in Zadeck et. al.'s paper (Effeciently Computing Single Static Assignment Form and the Control Dependence Graph). The only tricky part is handling non-instruction operands (e.g., function arguments, global variables, etc.). Some might be trivial to convert. Others may be difficult. You should look over all the classes derived fr...