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Dear R users, I am new to R and I couldn't figure out how to solve the following problem: I am trying to put a legend below two plots using the code below. The legend appears in the second plot, but I want the legend to appear below the two plots in the center of the total chart. At the moment the graphic looks like this: http://i48.tinypic.com/2h2fvhf.jpg [code] layout(matrix(1:2, nrow=1))

Hello everybody, I am new to R and I have a very basic question, but I couldn't get this to work. Let's say I have a vector s = c("a","a","a","b","b","c","c","c","c") s1 <- factor(s) s2 <- summary(s1) leads to the following a b c 3 2 4 How can I access the different aggregated values for a

Hello everybody, I am new to R and I am having the following problem. I have the following boxplot: boxplot(s$Estimate,u$Estimate,names=c("Security", "Usability")) title(main="Estimated development time",ylab="Estimate (weeks)") http://i35.tinypic.com/2rhw9rm.jpg but I want to add a label or symbol for a specific value to every boxplot. I uploaded a