similar to: cohen kappa for two-way table

Hi, I've got two vectors with ratings from two coders, like this: x<-c("red", "yellow", "blue", "red") #coder number 1 y<-c("red", "blue", "blue", "red") #coder number 2 I want to find Cohen's Kappa using the wkappa function in the psych package. The only example in the docs is using a matrix, which

Is there a function that calculates the inter-rater agreement index (kappa) in R? Thanks ../Murli [[alternative HTML version deleted]]

Hello, I?m looking for a way to measure the goodness of fit of my model with Cohen?s Kappa (scaling between 0 and 1). The kappa function does not give the results I?m looking for. Heres the code: z<-glm(x~y,binomial) kappa(z, exact = T) Does anyone know more? many thanks Christian -- _______________________________________________ Search for businesses by name, location, or phone number.

I was wondering, whether there is a way to have statistical significance test for cluster agreement. I know that I can use classAgreement() function to get Rand index, which will give me some indication whether the clusters agree or not, but it would be interesting to have a formal test. Thanks.

Dear all, I have a question on Cohen's kappa: Assume I have two datasets, one has 500 objects, 10 methods and the other, 1000 different objects, 20 different methods. Could I compare between the two datasets to conclude the 10 methods are more "concordant" than the 20 ones by looking at some output, for example, cohen.kappa{concord} ? One more, could anyone explain in brief,

Hi, I am having problems getting cohen's kappa to work. I have been using the function: ><-ckappa(x,y) from the psy package. I am trying to test for inter-observer reliability, I have 2 observers and 26 categories, however, the two observers might not necessarily have the same range of categories (I have unequal score ranges). However, I thought R could cope with this. Each time I

Hi, im little bit confused about Cohen's Kappa and i should be look into the Kappa function code. Is the easy formula really wrong? kappa=agreement-chance/(1-chance) many thanks christian ############################################################################### true-negativ:7445 false-positive:3410 false-negativ:347 true-positiv:772 classification-aggrement:68,6%

Hi I am working on corpora of automatically recognized utterances, looking for features that predict error in the hypothesis the recognizer is proposing. I am using the glm functions to do logistic regression. I do this type of thing: * logistic.model = glm(formula = similarity ~., family = binomial, data = data) and end up with a model: > summary(logistic.model) Call:

I am trying to do some verification across a large dataset, cuData, that has 23 columns. Column 23 (similarity) is the outcome 0 or 1 and the other columns are the features. I do this: verificationglm.model <- glm(formula = similarity ~ ., family=binomial, data=cuData[1:1000,]) and produce the model: > summary(verificationglm.model) Call: glm(formula = similarity ~ ., family =

Hola a todos, tengo unos datos clasificados, es decir un factor con etiquetas de 1 a 14 y quiero comprobar las coincidencias con un test (también otro factor). Lo que me interesa obtener más que la matriz de confusión o el indice kappa, es otro factor con las coincidencias entre ambos factores (clasificación y test). Es decir 1 si coinciden las etiquetas y 0 si no coinciden, Supongo que para

Dear WizaRds, I have been trying to compute the adjusted Rand index as by Hubert/ Arabie, and could not correctly approach how to define a partition object as in my last request yesterday. With package fpc I try to work around the problem, using my original data: mat <- matrix( c(6,7,8,2,3,4,12,14,14, 14,15,13,3,1,2,3,4,2, 15,3,10,5,11,7,13,6,1, 15,4,10,6,12,8,12,7,1), ncol=9, byrow=T )

Basically, the `Detail' section of ?tune says it all: Details: As performance measure, the classification error is used for classification, and the mean squared error for regression. ... Andy > From: Tae-Hoon Chung > > Hi, all; > > Basically, the subject contains the all information I need to know. > In e1071 library, there are functions to tune parameters.

Hello, I have to make use of the Cohen-Daubechies-Fauraue (CDF) 9/7 wavelet-transform, but have not found these biorthogonal wavlet in the released packages waveslim, wavethresh or wavelets. Is there any package doing this transform? Or can anybody send me the function doing this? I would be very grateful of that. Thanks Annika

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Sorry for the delay on this Henrik. The patches have been applied. Thanks, Reid. On Wed, 2004-10-13 at 11:44, Henrik Bach wrote: > Hi Reid, > > No one seems to have committed these files from Jeff Cohen or me: > > http://mail.cs.uiuc.edu/pipermail/llvmdev/2004-October/002316.html > http://mail.cs.uiuc.edu/pipermail/llvmdev/2004-October/002296.html > > Would you be so

Howdy, I'm trying to see my Samba shares from my Linux box on my WinNT machine. I can see the Linux box in the Network Neighborhod, but clicking on it just gets the old "remote computer not available". I've got RedHat 6.0 on the Linux box. I can ping the Linux box, I can FTP/Telnet to it, and it's my email server and I have no probl Content-Type: multipart/alternative;

¡Buenas tardes! (en el continente americano): Tengo los resultados de cuatro muestreos de campo (cuatro cruceros oceanográficos) y quiero calcular la "d"de Cohen para todas las combinaciones posibles de los cuatro cruceros. Los paquetes de R que he encontrado solo permiten hacer el cálculo para un par de grupos. ¿Hay algo que pueda hacer para hacer el cálculo de las seis combinaciones

Same question for asterisk-users as well: ----- Forwarded message from Tzafrir Cohen <tzafrir.cohen at xorcom.com> ----- Date: Wed, 7 Mar 2012 21:14:04 +0200 From: Tzafrir Cohen <tzafrir.cohen at xorcom.com> To: asterisk-dev at lists.digium.com Short version: it's now time to remove. Anybody actually uses latest DAHDI with RHEL4? See inline, On Thu, Dec 29, 2011 at 07:42:39PM

A new version of e1071 has been released to CRAN which should be much easier to install on a lot of platforms because reading/writing PNM images has been moved to the pixmap package, hence there are no longer dependencies on external libraries and no configure mechanism. For the authors, Fritz Leisch ********************************************************** Changes in Version 1.2-0: o

Hi guys I have been using R for a few months now and have come across an error that I have been trying to fix for a week or so now.I am trying to build a classifer that will classify the wine dataset using Naive Bayes. My code is as follows library (e1071) wine<- read.csv("C:\\Rproject\\Wine\\wine.csv") split<-sample(nrow(wine), floor(nrow(wine) * 0.5)) wine_training <-