similar to: Grahpics problem

There appear to be reports in the literature that transform continuous independent variablea by the use of splines, e.g., assume the dependent variable is hot dogs eaten per week (HD) and the independent variable is waistline (WL), a normal linear regression model would be: nonconfusing_regression <- lm(HD ~ WL) One might use a spline, confusion_inducing_regression_with_spline <- lm(HD

Hi good people, Just to inform: I finally fed FFMpeg2Theora with a .VOB input, and the .OGV output produced played back beautifully in VLC, both audio and video. However, the same output .OGV file gave clicks and pops in the audio when fed through Directshow programs. I played it through Windows Mediaplayer as well as through Winamp, with the same crackles in the audio, and this leads me to

hi! i have a little problem: my data's matrix has 1093 rows and 3 columns. i'd like to extract each rows.. something like this: ht= my matrix Dt=(???)=a vector with t=1,2...1093 what can i do? thank you! Vincenzo -- View this message in context: http://www.nabble.com/extractor-rows-from-a-matrix-tf3913088.html#a11094459 Sent from the R help mailing list archive at Nabble.com.

Is there any way to "force" 0 * NA to be 0 instead of NA? For example, suppose I have a vector with some valid values, while other values are NA. If I matrix-pre-multiply this by a weight row vector, whose weights that correspond to the NAs are zero, the outcome will still be NA: x <- c(1, NA, 1) wt <- c(2, 0, 1) wt %*% x # NA Alberto Monteiro

Hello, I'd like to generate a filled step-function in R as you can see in the attachement (image is generated by grapher, but I need a freely available alternative). The problem is, that I don't know, how to fill it up. My code right now looks like this: pH <- c(0,6.1,6.1,6.3,6.6,7.3,0) Tiefe <- c(0,0,10,40,80,120,10) plot(pH,Tiefe,type="s",main="Tiefenfunktion

Hi, is there a platform independent way to log a complete R session (input + output + warnings + errors + ???) into a text file? I can use sink(file, split=T) and savehistory() but it is quite cumbersome to merge the files and still there is some loss (eg. warnings). I wondered that I only found this thread from 2003(!) related to this topic:

Dear all, i am stuck with a syntax problem. i have a matrix which has about 500 rows and 6 columns. now i want to kick some data out. i want create a new matrix which is basically the old one except for all entries which have a 4 in the 5 column AND a 1 in the 6th column. i tried the following but couldn´t get a new matrix, just some wierd errors:

Good morning, I keep copies my .RData file in different directories for different projects on Windows XP. There is an icon on my desktop for each project so all I have to do is click on the icon to open R for a specific project, i.e. a specific .RData file. How do I change to another .RData file from within R without first closing R? Thanks, Walt Paczkowski

I would like to obtain the statistic of A2 for ycf between the value 0.0032 and 0.09, and I am using the following codes. while (0.0032 <ycf <0.09) { A2 <- A2_GOFlaio(ycf, dist="GEV")[1] print(A2) } Could anyone give me some advice as it does not work. Many thanks. -- View this message in context: http://www.nabble.com/Loop-for-test-statistic-tf3927249.html#a11137549 Sent

Hi list, I want to use the p-value from the survdiff function (package survival) to reuse within a function in a Kaplan-Meier plot. The p-value is somehow not a component of the value list ?! Thanks in advance -- A. Goralczyk G?ttingen, Ger.

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Hi, I want to do a chi square test and I have two tab delimited text files with Expected and Observed values to compare. Each file contains only the values and are 48 rows by 116 columns. I have managed to do something with them, but I don't think it is right as I got a p value of 1. In this case I used the read.table() function to read the values from the files. But I don't know if

Hi, I am trying to read some value from keyboard in one of my R program. I want to do manipulation on data based on this value. But I am facing a problem which is described below with the help of an example: My code is similar to: : : cat("\n","Enter value:: ","\n") y<-scan(n=1) a <- b*y cat("\n","Enter new value::","\n")

Dear all, I would like to know if there is a simple way to generate random numbers with the constrain that they sum up to one. I am new using R... Thanks in advance, N?ria _________________________________________________________________ Acepta el reto MSN Premium: Correos m?s divertidos con fotos y textos incre?bles en MSN Premium. Desc?rgalo y pru?balo 2 meses gratis.

Hi, I have another question. Is there any command that waits for key input? I am running R on OS X, so getGraphicsEvents doesn't work. I have put some debug print messages in a function and would like to pause the code every time the message is printed and continue on a keypress. Thank you Saptarshi Saptarshi Guha | sapsi@pobox.com | http://www.stat.purdue.edu/~sguha

Hi, I have a little problem with the installation of a new packages. The installation of R software is correct, but my server required authentication for use it, and for load a new package directly from R it is not possible. Is there a code or process for server authentication (put my login and password) in R for download directly the packages? The best regards, -- Luis Antonio Garavito

Hello, I am running R version 2.4.1 on Debian. I am using some R functions which produce several graphics displayed successively with an interactive prompt between each graph. For example, the plot.varest (vars) function produces such output (one graph per time series on which the VAR model is fitted). Plots on GARCH models also produce such outputs. Moreover, the frontend I am using for R

Hi, I am trying to restrict a data set so as not to included outliers. Specifically, I would like to specify a percentage where a fraction of observations are eliminated from the data set, much in the same way that the trimmed mean function works - but leaving the restricted data set intact. I have been using a function which will restrict the data set using: > trim=function(x,p){ >

hi, I want to add different colors on the background of a classical plot. Each color is associated to an interval of the x axis. example: the background is red on the interval [1,10], blue on [11,20]. I try the rect function but it isn't appropriate for the background. Can any one can help me please? best regards. --------------------------------- [[alternative

hi, in using glm function is it possible to extract residuals and predict values ? ___________________________________________________________________________ [[alternative HTML version deleted]]