In Histogram, when the data points fall on the bin edges, the following rules are used:

1. For each bin, it contains the data points fall inside the bin and the data point fall on the left edge. For example, if binSize=2, the bin[0] is in the range of [0,2]. The data value 0 is in bin[0] .
2. For each bin, the data point falls on the right edge is not included in the number point count. For example if binSize=2, the bin[0] is having the range of [0,2]. The data value 0 is in bin[0] but the data value 2 is not in the bin[0].
3. For the last bin, the data points fall inside the bin or fall on the left or right bin are counted as the number of bin points.

The last rule is newly introduced.