Hi everyone, I'm very new to R and I like to learn a lot... actually I have a little problem concerning errorbars with xyplot. My data look like run target hemi x 1 1 Nichts Links 0.0007743240 2 2 Nichts Links -0.0008153365 3 1 Target Links -0.0015825950 4 2 Target Links 0.0088743785 5 1 Nichts Rechts 0.0015898995 6 2 Nichts Rechts -0.0011465190 7 1 Target Rechts -0.0022225320 8 2 Target Rechts 0.0039010500 these data I plotted with xyplot(data=dummyy, x~hemi|target,groups=run,type="p") the same I do have with standard errors of means... How could I attach errorbars to the datapoints? I found some R-code from Dec 2002 but I dont work (and I did not understand it...) Thanks for helping me, maybe others out there will find it usefull too. Best Ronny [[alternative HTML version deleted]]
Ronny Hannemann wrote:> Hi everyone, > > I'm very new to R and I like to learn a lot... actually I have a little > problem concerning errorbars with xyplot. > > My data look like > run target hemi x > 1 1 Nichts Links 0.0007743240 > 2 2 Nichts Links -0.0008153365 > 3 1 Target Links -0.0015825950 > 4 2 Target Links 0.0088743785 > 5 1 Nichts Rechts 0.0015898995 > 6 2 Nichts Rechts -0.0011465190 > 7 1 Target Rechts -0.0022225320 > 8 2 Target Rechts 0.0039010500 > > these data I plotted with xyplot(data=dummyy, > x~hemi|target,groups=run,type="p") > > the same I do have with standard errors of means... > > How could I attach errorbars to the datapoints? I found some R-code from > Dec 2002 but I dont work (and I did not understand it...) > > Thanks for helping me, maybe others out there will find it usefull too. > > Best > Ronnylibrary(Hmisc) ?xYplot Frank Harrell -- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University