search for: infelicit

...s "NULL". But I don't really understand the implications of that. I am using virtual classes mostly to economize on method writing. Will it matter on any level whether my virtual classes have NULL or S4 prototypes? On a related note, the behavior exhibited below also seems infelicitous setClass("kid4", contains = "mom") new("kid4") # error in the show method franklin parlamis

Hi all, I need all your help on this. I have the next part of code:............e1=x1-mean(x1)e2=x2-mean(x2)n1=length(x1)n2=length(x2N=(n1 + n2)nu2=sum( c( ( x1 -mean(x1) )^2 , ( x2-mean(x2) )^2 ) )/Nss=c(e1,e2) b3= N*sum(ss^4)/ (sum( ss^2)^2)............what do lines 6-8 (mathematical notation)?Also the, what means part?............for(j in 1:B){ ss11=sample(x1, n1, replace=TRUE) ss12=sample(x2,