Chris@235: # Sonic Annotator's summary method integrates the values across
Chris@235: # time. If an output lacks duration for its features, each feature is
Chris@235: # considered to extend until the timestamp of the following feature,
Chris@235: # and the final feature is considered to extend until the end of the
Chris@235: # input or the last-ending output, whichever is later.
Chris@235: #
Chris@235: # The curve-vsr output is therefore considered to have 9 values (0.0
Chris@235: # to 0.8) that span 0.75 seconds each, followed by one value (0.9)
Chris@235: # that spans the 3 seconds from 6.75 to 9.75 where the final output of
Chris@235: # the plugin ends (that's the notes-regions output).
Chris@235: #
Chris@235: # The sum of 0.0..0.8 is 3.6, so the mean is (3.6 * 0.75 + 0.9 * 3.0)
Chris@235: # / 9.75 = 0.553846 approx.
Chris@235: # 
Chris@235: # Equivalently we can consider the last feature the same as four
Chris@235: # features of 0.75 seconds each (i.e. the same durations as the first
Chris@235: # 9) each with the same value, 0.9. The mean is then the sum of
Chris@235: # 0.0..0.9 plus three more 0.9s, i.e. 7.2, divided by 13.
Chris@235: #
Chris@235: 0.000000000,9.750000000,mean,0.553846,"(mean value, continuous-time average)"