Another way of examining the probability structure of data having a Station ID and PCode is to display the cumulative probability distribution:
All specified data are sorted by value and assigned the cumulative probability based on the Weibull plotting position [P = m / (n+1)], and plotted on a normal probability scale.
In the above example, a log-normal fit was calculated for each series and added to the graph, the the Y-Axis was changed from linear to logarithmic scale to flatten out the curves; see Calculated Series.