You may try analysis of covariance. But,as you say"There are no gender differences in age ",then why not combine 2 gender's age and ignore the gender?
2011/3/1 Jonathan DuBois <jonathan.m.dub...@gmail.com> > Hi, > > I am new to R, so I am unsure of the formula to set up this analysis. > I would like to run a linear model with a continuous dependent > variable (brain volume) and a continuous independent variable (age) > while controlling for a categorical nuisance variable (gender). > > Age and brain volume are correlated. > There are no gender differences in age but there are significant > gender differences in brain volume. > Therefore, I would like to control for gender when assessing the > association between brain volume and age. > > Any help would be very much appreciated. > > Jon > > ______________________________________________ > 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<http://www.r-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ 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.
