Re: [R] Partial aggregate on sorted data

>why not: >aggregate(myDataframe$TargetValue,list(SomeFactor = myDataframe$SomeFactor),function(x) mean(x[x>quantile(x,.66)])) Great stuff. Just what I was looking for ! Thanx a lot !! -- View this message in context: http://www.nabble.com/Partial-aggregate-on-sorted-data-tf4683988.html#a13

[R] Partial aggregate on sorted data

Hi All, I'm looking for ways to compute aggregate statistics (with the aggregate function) but with an option for sorting and selecting a subset of the data frame. For example, I have would like to turn this : aggregate(myDataframe$TargetValue,list(SomeFactor = myDataframe$SomeFactor),mean) in

[R] Variable selection in R

s < 0.1 or 0.01 as 0, which would eliminate a number of variates ? Does a decreasing order of (absolute) coefficient values amount to determining the order of selection of variables according to LASSO ? Thank you for your patience and for pointers. Yves Moisan -- View this message in context

Re: [R] export csv

ctive dataset. You probably have to create a subset first (to get M[1:5,]) and Rcmdr allows you to do that. HTH, Yves Moisan _ -- View this message in context: http://www.nabble.com/export-csv-tf4548263.html#a

[R] Cairo on windows

onal steps besides a package install of Cairo I have to worry about ? TIA, Yves Moisan -- View this message in context: http://www.nabble.com/Cairo-on-windows-tf4529124.html#a12923700 Sent from the R help mailing list archive at Nabble.com. [[alternative

[R] Stats 101 : lm with/without intercept

I am puzzled at the use of regression. I have a categorical variable ClassePop33000 which factors a Population variable into 3 levels. I want to investigate whether that categorical variable has some relation with my dependent variable, so I go : lm(Cout.ton ~ ClassePop33000, data=ech2) Call:

[R] Intermediate R-squared results in stepwise regression

where anova() output is explained in more theoretical (or I should say layman-compatible) terms than in the anova help file? How do I know which variable was selected/dropped first, second, etc? TIA, Yves Moisan -- View this message in context: http://www.nabble.com/Intermediate-R-squared