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. Author manuscript; available in PMC: 2008 Nov 1.
Published in final edited form as: Math Biosci. 2007 May 4;210(1):291–314. doi: 10.1016/j.mbs.2007.04.004

Figure 12.

Figure 12

Two-dimensional (joint) probability density function (pdf) of adjacent open and closed durations. The two random variables are a closed duration and the open duration following it. a) Two-dimensional pdf of adjacent open and closed duration measured from the experimental data by binning the durations. b) Two-dimensional pdf of adjacent uncorrelated open and closed duration. The pdf of open duration and closed duration were measured from the data. The expectation value for the pdf of uncorrelated adjacent open and closed durations was calculated analytically for the same binning intervals as in panel a. c) Difference between b and a. The small difference between the measured two-dimensional pdf and the expectation for the uncorrelated pdf is within the measurement error, indicating that the open duration is not correlated to the previous closed duration.