Re: [R] Score test for a subset of parameters estimated with coxph

An update regarding my question to compute the score test for a subset of parameters with coxph, when the option frailty is used: After further explorations, based on my previous examples, I realized that in presence of frailty term, coxph returns only the results from the likelihood ratio test, w

Re: [R] Cannot load vegan and vcd, "object vI not found"

Hi, You misunderstood the suggestion, which was to run update.packages() to update all packages, not just vegan (which doesn't need updated because you just reinstalled it). To make your own life easier, I'd run it as: update.packages(ask=FALSE, checkBuilt = TRUE) You could also try reinstalling

[R] subsetting/slicing xml2 nodesets

Dear R-help members, I'm working with the xml2 package to parse an xml document, and I don't understand how subsetting / slicing of xml_nodesets works. I'd expect xml_find_all to only return children of the nodes I selected with [ or [[ but it returns all nodes found in the whole document. I d