I have mydata$var #this is ONE group of patients And I would like to get median and ICR of mydata$var.
How can I get this? With summary (mydata$var)! Ok! And now I would like to get THE SAME, but for TWO group: male and female (which are contained in the group mydata$var) How can I get this? First I need to split mydata$var by mydata$sex, and then take: summary (for male) and summary (for female) That's all I want Bert, ave(mydata$var, madata$sex, FUN=median) gives me: [1] 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 [21] 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 What is it? It is an endless(???) repetition of the median. Moreover, there is no ICR. Jeff, your constructions are too complicated for me === P.S. Such simple thing and so difficult?! (I begin think about the Excel.) ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
