Figure 3
Optimal bin-width results by the extrapolation method for data set 1 with α = 0.9 (blue plus signs) and α = 0 (red crosses), α being a parameter in equation (6); bins with a fraction of masked space larger than this value are taken into account in the calculation of the cost function. The horizontal axis shows the count in the 4D space which is commonly spanned by all of the three kinds of data, located in the green regions in Fig. 2. The vertical gray lines show the lower and upper bounds of the counts of the corresponding experimental data sets in Section 3.2. The units on the vertical axes are the bin widths of the initial histogram. |