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...m <- stopwatch(function() example(glm)) # Plot the profile # y-axis gives percent of time spent in that function # x-axis gives position in call stack plot(profile_glm) # The first few levels aren't of interest, so we can skip them: # (see ?plot.call.tree for all options) plot(profile_glm, startlevel=4) # We might also want to see what's going further down plot(profile_glm, startlevel=4, depth=10) # By default only functions that take longer than 2% of the # total time are shown, setting mintime changes that plot(profile_glm, startlevel=4, depth=10, mintime=1) One interesting thing you...