[R] Line Graph Labels

I have a line graph that is flat and has sharp peaks (mass spectrometry data). I would like to plot my data and label the peaks with their x-axis value. I know it is possible to have a function to find local maxima and then to use these values in a label command but I am hoping there is a simpler

Re: [R] Line Graph Labels

Thanks Walmes, that does indeed work well for labeling all points greater than some specified value. But the problem is that while my peaks are very sharp there is more than one point along the line as it slopes up. This method will label those points as well , making the data look cluttered. Ide

Re: [R] Line Graph Labels

thanks again walmes. but the new problem would be that not all of the peaks are the same intensity. therefore the top five datapoints from my highest peak have greater intensity values than the highest point in the second-highest peak. but this is once again helpful. i found that there is a libra