Hi all, Is there any way to plot multiple linear models(lm) on the same window. I have data in the following format where I would like get a log-log plot between 3rd column and 4th column and fit a straight line through the points. The problem is that I have multiple files with such a format and I would like to plot of them on the same window so that I can compare their slopes and intercepts visually..... M10 N10 Deg10 K10 P_K10 3 1002 33 1 0.000998003992015968 3 1002 90 2 0.00199600798403194 3 1002 21 8 0.00798403193612774 3 1002 7 47 0.0469061876247505 3 1002 26 5 0.00499001996007984 3 1002 80 1 0.000998003992015968 3 1002 18 11 0.0109780439121756 3 1002 16 8 0.00798403193612774 Can anyone suggest me how to do this ? Thanks in advance for any suggestions. Regards, Anupam -- Graduate Student, Laboratory of Computational Biology, Center For DNA Fingerprinting And Diagnostics, 4-1-714 to 725/2, Tuljaguda complex Mozamzahi Road, Nampally, Hyderabad-500001 [[alternative HTML version deleted]]