Hi, I have written a for loop as such:
model<-lm(Normalised~Frame,data=All,subset=((Subject==1)&(Filmclip=="Strand"))) summary(model) ####################################### #To extract just the Adjusted R squared ####################################### rsq<-summary(model)[[9]] ########################### #To extract just the slope ########################### slope<-summary(model)[[4]][[2]] ####################################################### #To extract only the p value from the t test for slope ####################################################### pvalue<-summary(model)[[4]][[8]] #################################### data<-data.frame(slope,pvalue,rsq) #################################### ####################################### #To extract this info for all films ######################################## for (i in c(1:8,10:20,22:29)) { model_1<-lm(Normalised~Frame,data=All,subset=((Subject==i)&(Filmclip=="Strand"))) summary(model_1) slope<-summary(model_1)[[4]][[2]] pvalue<-summary(model_1)[[4]][[8]] rsq<-summary(model_1)[[9]] data2<-data.frame(slope,pvalue,rsq) data2<-rbind(data,data2) } I want this to run for all i but so far I am only getting two entries in my data frame, one for the first subject, and another. Does anyone know where I am going wrong in my code so I can have this data for all subjects 1-8,10-20, and 22-29. Thanks -- View this message in context: http://www.nabble.com/for-loop-for-extracting-linear-model-info-tp22869348p22869348.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.