similar to: plots for residual analysis

Hello list: I am using "cut" and "table" to obtain a frequency table from a numeric sample vector.  The idea is to calculate mean and standard deviation on grouped data.  However, I can't extract the midpoints of the class intervals, which seem to be strings treated as factors.  How do i extract the midpoint? Thanks, jose loreto [[alternative HTML version deleted]]

Dear All My data consists in 96 groups, each one with 10 observations. Levene's test suggests that the variances are not equal, and therefore I have tried to apply the classical transformations to have homocedasticity in order to be able to use ANOVA. Unfortunately, no transformation that I have used transforms my data into data with homocedasticity. The histogram of variances is at

Code: sh winetricks gfw does not work under regular user; only under root ( Code: sudo sh winetricks gfw ). What have i tried: * wiping ~/.wine preffix directory * creating new user in the system with clean ~/ home directory * applying winetricks volnum and winetricks sandbox * different versions of wine; from 1.2 to 1.3.15 * switching from 64-hybrid system to 32-vanilla one * switching from

Hello everyone, What is the best way to have R print a title and then skip a line (both without the [1] line preffix) when writing a function that prints an object (to the console)? Simplified example: fn3<-function(x,y){ c1<-cov(x,y) print(c1)} data1<-data.frame(age=rnorm(50),weight=rnorm(50)) attach(data1) fn3(age,weight) ===== How do I have R print a nicely formatted title

Hello, The following piece of code works fine in R.2.10 (ubuntu): switch(distr,         normal    = {if (is.infinite(param["desv"]))                      n <- c(n,"La desv. estándar no puede ser Inf.")                    if (param["desv"]<0)                      n <- c(n,"La desv. estándar no puede ser <0.")                    },        

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Hey, Here's a new swfdec-gnome release to go with the just released Swfdec 0.6 release. Changes: - Depend on Swfdec 0.6 - Support automatic install of missing audio/video plugins - Really translate all relevant strings (Wouter Bolsterle, Bastien Nocera) - Updated ca: Gil Forcada - Updated ar: Ignacio Casal Quinteiro, Djihed Afifi - Updated cs: Petr Kovar - Updated et: Priit Laes - Updated gl:

Hola, ¿qué tal? Hace unos meses anuncié en esta lista que había creado un agregador de noticias de R. Este agregador rastrea una serie de blogs, filtra aquellas entradas referentes a R, las agrega y: 1) Crea un RSS, que puede consultarse aquí: http://datanalytics.com/r_blogs_mashup.rss 2) Publica las entradas nuevas en Twitter bajo el usuario @noticiasSobreR. Están todas etiquetadas como

Hello, This is the sort of question that could interess others, so you should have CCed it to the list. As for the question, from the package vignette, section 3.3.6: "writeWorksheetToFile() is a wrapper function, calling loadWorkbook(), createSheet() and saveWorkbook() functions subsequently. It therefore allows for writing data into worksheets of an Excel file in one call." To

Hey fellas: I would like to integrate the following function: integrand <- function (x,t) { exp(-2*t)*(2*t)^x/(10*factorial(x)) } with respect to the t variable, from 0 to 10. The variable x here works as a parameter: I would like to integrate the said function for each value of x in 0,1,..,44. I have tried Vectorize to no avail. Thanks in advance, jose romero

Hey fellas: In the context of the gambler's ruin problem, the following R code obtains the mean duration of the game, in turns: # total.capital is a constant, an arbitrary positive integer # initial.capital is a constant, an arbitrary positive integer between, and not including # 0 and total.capital # p is the probability of winning 1$ on each turn # 1-p is the probability of loosing 1$ # N

i use "mgcv" package First, what is the different between partial response and partial residual plot? actually, is it partial response is as same as partial regression? second, if I use "log-link fuction", how to plot partial response and partial residual plot by R? Finally, If I want to plot partial resonse and partial residual plot, Should I create new gam equation by

The plots look reasonable to me. The plot of residuals against linear predictor always looks scary when many of the fitted values are very close to zero, so I tend to look at residuals against sqrt(fitted) in such cases. I don't think that the presence of the zero curve is a reason to reject the model --- it's easy to produce such plots by fitting a completely correct model to simulated

I'm running a categorical data analysis with a two-way design of nominal by ordinal structure like the Political Ideology Example (Table 9.5) in Agresti's book Categorical Data Analysis. The nominal variable is Method while the ordinal variable is Quality (Bad, Moderate, Good, Excellent). I rank/quantify Quality with another variable QualityR (1, 2, 3, 4), and run the following:

Dear all, I am trying to simulate data sets from a model fitted with glmmPQL, in order to compute the distribution of a summary statistics. My data are binomial and I have a correlation term in my model. My model is structured in the following way m <- glmmPQL( fixed = cbind(sucess,failure) ~ x1 + x2 + ... , random = ~ 1 | bidon, correlation = corGaus(form=~

Dear R- users Does any one know how to fit a linear mixed model such that the residuals ( grouped by a variable say "gender") are correlated and have a covariance matrix (in this case a 2 by 2 covariance matrix). Thanks in advance Pryseley --------------------------------- [[alternative HTML version deleted]]

I am trying to run an ANOVA on my soil respiration data, but I keep getting residual sum of squares and mean square of zero. As I understand it that would mean that the model terms explain all of the variation in the response variable. That should be virtually impossible, should it not? Where do I begin troubleshooting such a problem? -- View this message in context:

Hi, I am doing a regression tree using the package 'rpart' but could not able to calculate the residual mean deviance. Please help. Narayan [[alternative HTML version deleted]]

I have an extension.conf which calls a sip phone and the console in parallel. exten => _1${EXT_BARRY},1,Dial,sip/${EXT_BARRY}&Console/dsp This is done to use the console speaker as a load ringer for extension ${EXT_BARRY} The process works, but while the call to Barry is active, and after its completion, one process starts using about 99% of the CPU. I watch CPU usage with

The residual echo suppression is supposed to be working decently well now. However, it's not designed to counter the effects of samples being dropped off the soundcard. You'll just need to fix that problem for real. Jean-Marc Coffey, Michael a ?crit : > What is the current status of the residual echo suppressor in the > preprocessor? > > I ask this because I have occasional