[R] Percentage Variance Stepwise Multiple Regression

Dear R, > I am using stepwise multiple glm to select a subset of variables using the > step command. My question is how do you calculate the percentage variance for > each parameter and the cumulative percentage variance for all of the combined > parameters in the reduced model. > Thanks in a

[R] Stepwise Multiple Regression

Dear R, I am using stepwise multiple glm to select a subset of variables using the step command. My question is how do you calculate the percentage variance for each parameter in the reduced model. An example of my code thus far is, fit<-glm(Abalone~offset(Area)+Sessile invertebrates+Bare rock+

[R] Quantile Regression R squared

Dear R, I am currently trying to caculate the coefficient of determination for different quantile regression models. For example fit<-rq(Hrubra~SessileInvertebrates,tau=0.8, data=Q1) fit1<-rq(Hrubra~SessileInvertebrates,tau=0.8, data=Q2) etc Could someone please advise me how do you calculate

[R] FW: AIC Quantile Regression

> To: [EMAIL PROTECTED] > From: [EMAIL PROTECTED] > Date: Wed, 13 Feb 2008 11:38:43 +1100 > Subject: AIC Quantile Regression > > Dear R, > I currently trying to fit quantile regression models to test the > relationship between abalone and algal cover at different quadrat sizes. > I am using the