similar to: Neat way of using R for pivoting?

Displaying 20 results from an estimated 1000 matches similar to: "Neat way of using R for pivoting?"

2015 Jan 19
1
[RFC][FFT][Fixed-Point][NEON] NEON-Optimize
Hi Jean-Marc, I have implemented fixed-point FFT with 32-bit twiddles. Now I want to evaluate the accuracy, what method does Opus use? I use function implemented inside Ne10 to calculate SNR. Any comment? | size | SNR (dB) | | 16 | 82.558587 | | 32 | 83.530298 | | 60 | 80.292433 | | 64 | 82.752950 | | 120 | 79.625077 | | 128 | 83.091260 | | 240 | 79.555263 | | 256 |
2014 Dec 29
2
[RFC][FFT][Fixed-Point][NEON] NEON-Optimize
Hi Timothy, It requires some extra effort if twiddles and input/output have different bit width. Since Opus uses int32 for twiddles, we are going to do the same thing. Thanks, Phil Wang -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not
2000 Aug 21
0
SAMBA digest 2633
[Steve Snyder <swsnyder@home.com>] > When I attempted to build Samba (v2.0.7) on a LynxOS (v3.1) box I was > told that configure could determine my operating system. > > LynxOS, for those that don't know, is a Unix-like RTOS. It comes > with a binary version of Samba, but a) it's old and b) it's not built > for encrypted passwords which means I can't
2007 Jun 03
6
mongrel cluster w/ apache
hi all, i''m working on deploying my app w/ apache and a mongrel cluster. i''ve started by copying the instructions and code from the agile rails book and everything seems to be working fine but apache isn''t forwarding my requests to mongrel the way i expect it should. there''s nothing in the rewrite logs and nothing but 404 errors in the apache error logs.
2009 Mar 04
9
[Bug 20466] New: No borders in Xmonad/Dwm
http://bugs.freedesktop.org/show_bug.cgi?id=20466 Summary: No borders in Xmonad/Dwm Product: xorg Version: 7.4 Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy:
2015 May 08
2
(no subject)
Hello Jean-Marc, Below are the results that show test_unit_dft passes, but test_unit_mdct fails (only for nfft=480, 960, 1920) Note: Tested on BeagleboneBlack(Cortex-A8) fixed point on branch [1] ./test_unit_dft nfft=32 inverse=0,snr = 88.394372 nfft=32 inverse=1,snr = 93.896470 nfft=128 inverse=0,snr = 89.185895 nfft=128 inverse=1,snr = 93.537021 nfft=256 inverse=0,snr = 88.353151 nfft=256
2014 Feb 05
4
Make check failure on clone from 31 January
Hi, Apologies if this is a known issue, but running make on revision e3187444692195957eb66989622c7b1ad8448b06 fails one of the tests when using fixed point configuration (floating point is ok) on my linux x86. Note that libopus1.1, as extracted from the tar ball, is OK. Specifically, the tests that fail are in celt/tests/test_unit_mdct: nfft=32 inverse=0,snr = 85.341197 nfft=32 inverse=1,snr =
2015 May 08
1
(no subject)
Hello Jean-Marc, Yep, that was it.. with your patch, test_unit_mdct passes for all nfft. So, what you do you suggest the next step here is? Regards, Vish On 8 May 2015 at 12:30, Jean-Marc Valin <jmvalin at jmvalin.ca> wrote: > Hi, > > Can you apply this change to the MDCT test and run it again. See if more > (all) sizes pass. Given the results, I strongly suspect an
2005 Dec 29
14
Rails 1.0 - Agile book still good?
I''m new to Ruby and RoR but excited to learn what I can do with RoR; I have Pickaxe second edition and want to get "Agile Web Development with Rails" but I''m aware that the book was published some while before RoR version 1.0 was released. Has a lot changed since then, and would I therefore be advised to wait for a second edition of AWDwR? Many thanks in advance
2018 May 30
2
Filtering using multiple rows in dplyr
Hi Folks, I have just started using dplyr and could use some help getting unstuck. It could well be that dplyr is not the package to be using, but let me just pose the question and seek your advice. Here is my basic data frame. head(h) subject ageGrp ear hearingGrp sex freq L2 Ldp Phidp NF SNR 1 HALAF032 A L A F 2 0 -23.54459 55.56005 -43.08282
2015 Oct 06
3
[RFC V3 7/8] armv7, armv8: Optimize fixed point fft using NE10 library
I'm trying to get these cleaned up and landed, but I'm running into some trouble with this patch. Using commit a08b29d88e3c (July 21) of Ne10, I'm seeing test failures for 60-point FFTs: nfft=60 inverse=0,snr = -3.312408 ** poor snr: -3.312408 ** nfft=60 inverse=1,snr = -16.079597 ** poor snr: -16.079597 ** All other sizes tested appear to work fine (84 to 140 dB of SNR). This
2002 Jun 10
2
Crashing R (PR#1651)
Concerns: R 1.5.0 gui version, Windows (downloaded binary) and Linux (installed from sources). # Load the data from the attached file: kk<-read.table("__filename__", header=1) # attach the data: attach(kk) Snr<-factor(Snr) # fool around with a call to anova.glm(): anova.glm( aov( nFD~Type+size+Modality+Error(Snr/(Type+size+Modality)) ) ) # Error: object nFD not found # Well, I
2008 Mar 24
3
Simple problem in R
I found a package on www.bioconductor.com that allows me to install using this line: source("http://bioconductor.org/biocLite.R") biocLite("MassSpecWavelet") The prompt showed me the following message: Running biocinstall version 2.1.10 with R version 2.6.2 Your version of R requires version 2.1 of Bioconductor. trying URL
2004 Aug 06
2
testenc and snr calculation
Hi all, I'm new to the group. I'm looking at the speex code with an eye towards maybe helping out with either codec optimization or fixed-point implementation, The SNR calculation in testenc.c and testenc_uwb.c doesn't make sense to me. The code is { float enoise=0, esig=0, snr; for (i=0;i<FRAME_SIZE;i++) {
2007 Jun 27
1
Self Calling test
I've had slew of problems with my Bell Canada Single Number Reach (SNR) dropping in the past couple of months. Another outage Monday for several hours has me wondering if there's a way to 1. Make a call out of my system via a PSTN back to my SNR line, say every 30 minutes (this I'm sure is easy enough via the call file...however...) 2. Track the outgoing call and match to an
2005 Jan 22
5
Checking accuracy of the output
We've made a little change that changed the output of vorbis is there a way to check the accuracy of the output against the original output? I also asked this question in the irc ... Thanks, Tal.
2008 May 29
2
FFT Resampler
>> Yes, I plan to use it in a VoIP environment if I can get latency reduced to >> an acceptable level :) >> The latency depends directly on the overlap parameter, which also controls >> the quality. Higher quality => higher latency. You could set the overlap to >> 0, but that would give you some nasty artifacts. >> You can also resample with smaller block
2007 Jun 03
3
mongrel cluster w/ apache
hi all, i''m working on deploying my app w/ apache and a mongrel cluster. i''ve started by copying the instructions and code from the agile rails book and everything seems to be working fine but apache isn''t forwarding my requests to mongrel the way i expect it should. there''s nothing in the rewrite logs and nothing but 404 errors in the apache error logs.
2004 Aug 06
1
testenc and snr calculation
I submitted a version of testenc.c to this list MONTHS ago that fixed this problem. It uses a reconfigurable group delay. If you had given me cvs access I could've committed the changes myself. Anyway, the file is attached (again). Maybe this time you'll actually notice the email. Sorry if I seem a little short. It's just very annoying to put the time into learning and improving a
2004 Aug 06
3
Quality
I was wondering if the developers were using anything to "objectively" test the quality of the speex vocoder. For instance PSQM or one of the many derivatives. Mean Opinion Scoring seems an expensive route. Is there some open source software to use for this? <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To