similar to: shapiro wilk

Hi, I have been using R for a bit, but never came across this simple issue... So, I wonder if anyone could give me a hint on it. I have calculated a bunch o models and now need to compare them using AIC(). The issue seem to be that I have placed each output in a list object. So, the question is how to convert a string into variable names. Lets say I have all my models in a variables called :

Can anybody tell me the exact meaning of the $statistic and $p.value calculated by shapiro.test? Unfortunately it is not covered in my few text books, and I cannot find the explanation in the R documentatiom or on-line. If I have a test statistic, T, which is Normally distributed with mean=m and sd=s under the null hypothesis, then I can convert T to a p-value (one-sided) using: p <- pnorm(T,

What is the formula used in Shapiro-Wilk Statistic? Thanks Eduardo (S?o Paulo/ Brazil)

Hi everybody, Does anyone know what problem may be with this test. I am applying 5 different normality tests and use p-values for them, but for some reason S-W gives me NA, while sample size is 100. Any ideas? Thanks a lot! [[alternative HTML version deleted]]

>>> Ted Harding <Ted.Harding at manchester.ac.uk> 14/07/2008 00:16 >>> >said: >What constitutes "reasonable doubt" can become a very interesting >question, but there are some crimes for which it has a definite >statistical interpretation Warning for potential courtgoers: "reasonable doubt" NEVER has a direct statistical interpretation in a

Greetings! I want to have the coefficients that R uses in shapiro.test() for the Shapiro-Wilk test for a prticular sample size, i.e. the a[i] in W = Sum(a[i]*x[i])/(Sum(x[i] - mean(x))^2) (where the x[i] are sorted). Two questions: Q1: Is there a readymade R function from which I can extract these? Q2: I was wondering if I might be able to modify the code for the function shapiro.test() so

Hi, does the shapiro wilk test in R-1.3.0 work correctly? Maybe it does, but can anybody tell me why the following sample doesn't give "W = 1" and "p-value = 1": R> x<-1:9/10;x [1] 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 R> shapiro.test(qnorm(x)) Shapiro-Wilk normality test data: qnorm(x) W = 0.9925, p-value = 0.9986 I can't imagine a sample being

Hello, I was wandering if it is possible to perform on a dataframe called 'all' a shapiro wilk normality test for COUNTS by variable Group ACTIVITY? Could it be done using plyer? I saw an eg that applies to an array but not to a dataframe: lapply(split(dataset1$Height,dataset1$Group),shapiro.test) Any thoughts would be much appreciated. My dataframe is in shape: dat ACTIVIT

Hi everybody, somehow i dont get the shapiro wilk test for normality. i just can?t find what the H0 is . i tried : shapiro.test(rnorm(5000)) Shapiro-Wilk normality test data: rnorm(5000) W = 0.9997, p-value = 0.6205 If normality is the H0, the test says it?s probably not normal, doesn ?t it ? 5000 is the biggest n allowed by the test... are there any other test ? ( i know qqnorm

Hi, Actually, I thought that Icecast did support seeking for static files. Of course it doesn't for a live stream. Geoff. ----- Original Message ----- From: "Thomas B. Ruecker" <dm8tbr@afthd.tu-darmstadt.de> To: "Horacio Sanson" <hsanson@gmail.com>; <icecast@xiph.org> Sent: Tuesday, October 23, 2007 1:01 PM Subject: Re: [Icecast] Streaming to Doja

Agradezco la ayuda recibida me vino muy bien,,, el problema de instalar el paquete lubridate es que no está en los repositorios de Debian,,, al usar RStudio creo que se debe instalar en ~/R/x86_64-pc-linux-gnu-library previa compilación de fuente bajada de r-cran,,, cosa que será otro pedido de ayuda en el futuro si sale mal,,, Saludos Horacio El día 30 de diciembre de 2016, 7:05, Carlos Ortega

I have a little image gallery application in rails enough for small galleries (20< photos). But as images increase and the user needs to scroll down the page it starts getting anoying to see all pictures... I thought pagination but then I saw this AJAX goodness http://www.apple.com/getamac/ads/ As you can see the videos scroll right/left when the arrows are pressed in a circular manner

i have a problem, i am installing openssh-3.6.1, in digital unix version 4.0d, and no can,t install for this error, configure: error: *** Can't find recent OpenSSL libcrypto (see config.log for detail) please helpme Horacio Mari?a

Hi all, I'd like fit this function: G(t)=A*1/(1+t/B)*1/sqrt(1+t/C) where A, B and C are fitting constants that one like search. I have got a fcs<-(t,G(t)) value table in a data frame. Any one can help me? Tahnks Horacio.

We're involved in a project that the requirements could be satisfied with both samba3 and 4. Anyway I am testing what can be done with Samba4 and after following the tutorial published in the official wiki, I was able to create my test domain, and join WinXP and Win7 machines to it without a problem. I still need to test the GPO functionality, and some other stuff, but before continuing with

Where can I find documentation about manual configuration of Gluster peers/volumes? All documentation seems to be about the gluster CLI. I would prefer manual configuration to facilitate automation via scripts (e.g. Puppet/Chef). I also read in this list that it is possible to configure Raid10 via text files... I would also like to experiment with this setup. Any related documents on how to do

I want to run Shapiro-Wilk test for each variable in my dataset, each grouped by variable groupFactor. I have these working commands: > data.n<-names(data) # put names into a vector called data.n > by(eval(parse(text=(paste("data",data.n[3],sep="$")))), data$factor, shapiro.test) #run shapiro.test but I must to change the variable number manualy. How to automate

I am working a Bibtex database for my school using Rails and I need some idea on how to manage the bibtex types. I crated an Author and Publications model and put has_and_belongs_to_many relationship between them. The user model basically is like this: class User < ActiveRecord::Base has_and_belongs_to_many :publications end The Publication model has all the Bibtex fields

Hi all, I am newbie in using R software and also doing statistical test. I want to know if my data in in normal distribution. I have 2 groups of data and I did calculate Shapiro Wilks using R software. Here is the results: Group 1: W = 0.9206, p-value = 0.01683 Group 2: W = 0.9626, p-value = 0.4694 I am not quite sure what default confidence level (CF) is used in calculating Shapiro Wilks.

Hi all, excuse me by this elementary question. I wish to know if a package in language R exists to analyze FCS (Fluorescence Correlation Spectroscopy) datas. And, if it possible, in addition can read the archives in raw format generated by the ConfoCor2 program. Thanks Horacio. **************************************************************************** Dr. Horacio Castellini