The purity_pT_1D.C is the macro with trouble detected. The bin_info.log record the cout output of the macro, which has the coordinate information of the plot. The png file is the output plot of the histogram.
- The bin with y_value=0 is lower that the bin with small positive y_value.
- According to the log file, the scatter should be equal-distant in x-axis. However we can see from the plot that some points are very close and some are far.