I am using R version 3.2.3 in Linux mint 17.3 64 bit. I was trying to install the package "car" with dependencies=TRUE, but the installation failed with the following error messages: > warnings...

In ggplot2, after I drawing the ellipse plot using stat_ellipse, is there any way to calculate the area of this ellipse? Here is the code and the plot: library(ggplot2) set.seed(1234) x <- rnor...

I am am trying to load a simple dataset using: library(car) but I get the following error: Error in library("car") : there is no package called 'car' Does anyone have an idea why this happens...

I am trying to recode a factor variable in R and using the following code: library(car) napier_captureComplexity=recode(napier$a_SpatialConnectivity,"'1 - Very simple and clear: no diagrams, singl...

I'm dealing with an unbalanced design/sample and originally learned aov(). I know now that for my ANOVA tests I need to use the Type III Sum of Squares which involves using fitting using lm() rathe...

By following this post one can draw an ellipse with a given shape matrix (A): library(car) A <- matrix(c(20.43, -8.59,-8.59, 24.03), nrow = 2) ellipse(c(-0.05, 0.09), shape=A, radius=1.44, col=...

When I try to load the 'car' package I get this error: library(car) Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : namespace 'nlme' 3.1-122 is alread...

I have a 2-way repeated measures design (3 x 2), and I would like to get figures out how to calculate effect sizes (partial eta squared). I have a matrix with data in it (called a) like so (repeat...

> library(car) > df = data.frame(value=c('A', 'B', 'C', 'A')) > foo = recode(df$value, "'A'=1; 'B'=2; 'C'=3;", as.numeric.result=TRUE) > mean(foo) [1] NA Warning message: In mean.defau...