subject:"\[R\] Help with scatter plot"

Re: [R] Help with scatter plot

2010-05-11 Thread Greg Snow

il > Sent: Tuesday, May 11, 2010 12:45 PM > To: r-help@r-project.org > Subject: [R] Help with scatter plot > > Dear All, > > I would like to add the mean line in the scatter plot by groups. I have > plotted (X.val is 3 groups: 0, 1, 2): plot( Y ~ X.val). How can I add &g

[R] Help with scatter plot

2010-05-11 Thread A Ezhil

Dear All, I would like to add the mean line in the scatter plot by groups. I have plotted (X.val is 3 groups: 0, 1, 2): plot( Y ~ X.val). How can I add mean/median line (horizontal) for each group on the scatter plot? Thanks in advance. Kind regards, Ezhil