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view tests/test-summaries/expected/testplug-curve-vsr-mean.csv @ 304:0ea0f36cc576
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author | Chris Cannam |
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date | Mon, 10 Jul 2017 20:51:07 +0100 |
parents | 6a804920b4a8 |
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# Sonic Annotator's summary method integrates the values across # time. If an output lacks duration for its features, each feature is # considered to extend until the timestamp of the following feature, # and the final feature is considered to extend until the end of the # input or the last-ending output, whichever is later. # # The curve-vsr output is therefore considered to have 9 values (0.0 # to 0.8) that span 0.75 seconds each, followed by one value (0.9) # that spans the 3 seconds from 6.75 to 9.75 where the final output of # the plugin ends (that's the notes-regions output). # # The sum of 0.0..0.8 is 3.6, so the mean is (3.6 * 0.75 + 0.9 * 3.0) # / 9.75 = 0.553846 approx. # # Equivalently we can consider the last feature the same as four # features of 0.75 seconds each (i.e. the same durations as the first # 9) each with the same value, 0.9. The mean is then the sum of # 0.0..0.9 plus three more 0.9s, i.e. 7.2, divided by 13. # 0.000000000,9.750000000,mean,0.553846,"(mean value, continuous-time average)"