similar to: 2 x 2 chisq.test (PR#8415)

Full_Name: foo ba baz Version: R2.2.0 OS: Mac OS X (10.4) Submission from: (NULL) (219.66.32.183) chisq.test(matrix(c(9,10,9,11),2,2)) Chi-square value must be 0, and, P value must be 0 R does over correction when | a d - b c | < n / 2 &#65292;chi-sq must be 0

I can't hardly accept the result of cor function with pairwize.colplete.obs or complete.obs insert print statements in cor function, + if (method != "pearson") { + Rank <- function(u) if (is.matrix(u)) + apply(u, 2, rank, na.last = "keep") + else rank(u, na.last = "keep") + x <- Rank(x) +

Hi, I have a text mining project and currently I am working on feature generation/selection part. My plan is selecting a set of words or word combinations which have better discriminant capability than other words in telling the group id's (2 classes in this case) for a dataset which has 2,000,000 documents. One approach is using "contrast-set association rule mining" while the

Hello all, Let say I have 2-way contingency table: Tab <- matrix(c(8, 10, 12, 6), nr = 2) and the Chi-squared test could not reject the independence: > chisq.test(Tab) Pearson's Chi-squared test with Yates' continuity correction data: Tab X-squared = 1.0125, df = 1, p-value = 0.3143 However I want to get all possible contingency tables under this independence

Hello I have the matrix a<-matrix(c(2,1,0,1,2,2,1,5,7,2,5,12),nrow=6) a [,1] [,2] [1,] 2 1 [2,] 1 5 [3,] 0 7 [4,] 1 2 [5,] 2 5 [6,] 2 12 Suppose that in the first row we have 3 men of England, 2 with hair, and 1 no In the second we have 6 italian men, 1 with hair and 5 no ... I want to find if there is a dependence between men withouth hair and

TOPIC My question regards the philosophy behind how R implements corrections to chi-square statistical tests. At least in recent versions (I'm using 2.13.1 (2011-07-08) on OSX 10.6.8.), the chisq.test function applies the Yates continuity correction for 2 by 2 contingency tables. But when used as a goodness of fit test (GoF, aka likelihood ratio test), chisq.test does not appear to implement

Dear all Seems that puzzles always come in packs. I was asked to help with some statistics in blood analysis. (You can not refuse your wife's asks :-). She has contingency table for values IgVH mutation and ZAP expression. I can do chi-square test (in R) and get a results, and with some literature I can try explain them. However she found an article in which they use SPSS and use

Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> writes: > Quality and bit-rate are different ways of specifying exactly the same > thing. Complexity is orthogonal. That clears it up - thanks. Is this in the manual? --Randy > > Jean-Marc > > On 2010-04-03 08:28, Randy Yates wrote: >> Jean-Marc: I know you're seeing these - how about a response? >>

Jean-Marc: I know you're seeing these - how about a response? --Randy Randy Yates <yates at ieee.org> writes: > If I understand these terms correctly, you cannot specify simultaneously > all three, e.g., high quality, low bitrate, and low complexity. > > It seems that specifying any two implies the third. For example, > specifying a high quality and low bitrate will

The cells are interpreted as counts, so by scaling you're analyzing a different experiment (one with fewer observations). So the chi-squared value will change (the terms (O-E)^2/E in the statistic scale linearly ignoring rounding and "Yates' continuity correction"). The chisq.test on the original data is a test of association. Conventionally you decide ahead of time on a

Saju Palayur <saju_pa at hotmail.com> writes: > Hi > > > > When we run the profiler these 3 functions take more than 8500 cycles. > > > > split_cb_search_shape_sign_N1() 22782 > pitch_search_3tap() 19208 > lpc_to_lsp() 16007 > > So can I configure these in a different way so it takes less cycles. I am not familiar with the code, so I can't

Randy Yates <yates at ieee.org> writes: > The speexenc.c example has a "--bitrate n" command line option, but I > can't find in the Speex Codec manual where the default bitrate is > defined. > > What is the default bitrate for 16 kHz mono? Also here are a few other bitrate-related questions: 1. Does average bitrate mode ==> variable bitrate mode? 2.

Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> writes: > On 2010-04-03 22:52, Randy Yates wrote: >> Jean-Marc Valin<jean-marc.valin at usherbrooke.ca> writes: >> >>> Quality and bit-rate are different ways of specifying exactly the same >>> thing. Complexity is orthogonal. >> >> That clears it up - thanks. Is this in the manual? >

R 2.12 windows 7 I am summary data that I would like to make into a 2x2 table representing counts positive vs. negative counts: 28/289 20/276 My table should look something like the following: group1 group2 Positive 28 20 Negative 289 276 How can a (1) create the 2x2 table (2) run a chi square test on the table? I have tried the following code, but I

Max Lapshin <max.lapshin at gmail.com> writes: > On Wed, Apr 14, 2010 at 3:11 AM, Randy Yates <yates at ieee.org> wrote: >> Can someone please point me to such an example file? Note that I prefer >> speex encoded as a sound stream and NOT a sound event in order to reduce >> latency on playback at the client. However, an example of speex encoded >> as an

Adobe's "SWF File Format Specification, Version 10" supposedly allows a speex-encoded stream to be wrapped in a .swf file as a sound stream, however, I have been unable to find an example of such a file anywhere. Can someone please point me to such an example file? Note that I prefer speex encoded as a sound stream and NOT a sound event in order to reduce latency on playback at the

Hi Randy, Thanks for reply. I have one question though. While compiling the speex (downloaded from http://downloads.xiph.org/releases/speex/speex-1.2rc1.tar.gz), I gave ./configure -enable-ti-c55x option and then built the library through make and make install using cygwin. In this case, I get this error "error: member "bits.o" of archive

Saju Palayur <saju_pa at hotmail.com> writes: > Hi > > > > We have ported the Narrow band 8 Khz Speex encoder and decoder on to TI DSP 5505 > > > > To compress 20ms of 16 bit audio sampled at 8Khz it takes 4.2ms. > > Is there any optimizations I can do to make it run faster. The first thing to do would be to profile the code (I assume you're using

Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> writes: > On 2010-04-03 23:56, Randy Yates wrote: >> The sentence "Unlike some other speech codecs, it is possible to control >> the tradeoff made between quality and bit-rate" implies to me that they >> are NOT the same thing. > > This sentence should read: "tradeoff made between quality and

On Fri, 13 May 2016, Rowland penny wrote: > Might be a stupid question, but have you started Samba? > On 13/05/16 13:34, Tom Yates wrote: >> >> [root at frodo etc]# smbclient -L localhost -Ugeoff >> Enter geoff's password: >> Domain=[ADTEST] OS=[Windows 6.1] Server=[Samba 4.4.3] >> >> Sharename Type Comment >>