Is there a way to perform a one-sided Fisher's exact test? In the help file, it is noted that the function fisher.test is always two-sided. If I divide my two-sided p-value by 2 (p/2), or (1-p)/2 ac
I've got a problem when I coerce a numeric value to a character: I loose some decimal digits after the decimal point. Example: [1] "3.45" "3.4" I really want to keep the 2 decimal digits. Does someo
I would like to know if someone knows a function for the AUC calculation according to the trapezoidal method. I can program it, but if I can safe time it will be a good news ! Thanks for your help A
Thanks, but I program it (and it was really fast). -- Réacheminé par Annaelle Sanquer/VIRBAC/FR le 01/02/05 15:30 -- Annaelle Sanquer Pour : s-news@wubios.wustl.edu 01/02/05 15:04 cc : Objet : Trapez
I would like to construct a mixed effect model, but I hesitate on the form of my model. I have some subjects, which are distributed among 4 rooms. Each subject is treated with one product, and its w
In the context of n several simple linear regression, does someone know what is the "standard deviation of y-intercepts of regression lines" ? How can I calculate it ? Is it only the standard deviat
I have a problem with the use of fisher.test: Hereafter the crossatbulation of my data: Call: crosstabs(formula = ~ Value + Group, data = mydata) 133 cases in table +--+ +--+ Value |Group --+--+--+-
does someone could tell me what is the best way to perform an analysis of covariance. I try : summary(glm(y ~ Group * x, data=SDF1)) I obtain the following results: Coefficients: Value Std. Error t
Hi everybody, a simple question: I want to produce a pie chart, and I use the following code: pie(table(SDF1$Group),names=c("Present","Absent"), col=c(5,13), rotate=FALSE) but I would like that the p
I would like to analyse a large dataset componed of 20 qualitative variables (ordered factors) with a method in the same mind that Principal components analysis. I saw this method in some books, but
Does anyone knows if it exists a command line for Grouped bar graph, other than GuiPlot. I try "barplot", but I obtain only stacked bars and not grouped. Thanks in advance annaël
I would like to custom a report from an S-PLUS object by modifying the file SplusObjects_FO.xsl like described in the technical paper "XML reporting". But I cannot modify the file: I made a copy to
I have a little question: when I transform a numeric variable, with a fixed digit number, in character, I loose the null digit. How can I keep them? example: x <- c(2.369,5.421,8.00,9.458) [1] 2.37