<html><head></head><body><div style="font-family:courier new, courier, monaco, monospace, sans-serif;font-size:16px;"><div>Hi,</div><div>I was wondering if someone could possibly suggest a solution to the following:</div><div>I have fitted a linear model in R [lm command] which includes both categorical and continuous variables and one interaction between a categorical and continuous variable.</div><div>The interaction is significant and I was wondering if there is a way after fitting the model to calculate using a command the stratified estimates and associated confidence intervals for the interaction variables.</div><div>Many thanks,</div><div>Nikos</div><div><br></div></div></body></html>