search for: ratna

Displaying 2 results from an estimated 2 matches for "ratna".

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2008 Nov 10
4
Labeling points with xYplot
Hello R-Users, I am trying to label points on an xYplot. I can label the points, but then I lose the error bars. I suspect that I should be using panel.xYplot rather than panel.xyplot, but that didn't work either... Can anybody help me out? Example code is below. First xYplot has error bars, second tries to label the points and the bars disappear. Thanks, John a=c(1:4)
2009 Mar 26
1
Extreme AIC in glm(), perfect separation, svm() tuning
Dear List, With regard to the question I previously raised, here is the result I obtained right now, brglm() does help, but there are two situations: 1) Classifiers with extremely high AIC (over 200), no perfect separation, coefficients converge. in this case, using brglm() does help! It stabilize the AIC, and the classification power is better. Code and output: (need to install package: