search for: tobacco0

...h biplot arrows pointing from origin to the species and hide the insignificant species(closer to the origin) on the graph. Also he asked me to use colored solid circles for plotting patients(instead of patient names) with the three levels of the tobacco factor( for example: red circle to represent tobacco0, green circles to represent tobacco1, black circles to represent tobacco2).He asked me to shade the 95% confidence ellipses with the same color as the levels of tobacco factor. Please advice. Thanks, Trinadh [[alternative HTML version deleted]]