Problem in chart while using the "Class"

[#1]

Hi All,

I just tried the Sales Value class after referring to some sample document. By the way let me know how ' interval got generated. I am not able to see the interval in the list box but how come it is there in the chart.

[#2]

The NULL value items will be shown in the chart, because they are the result of the calculation expression. I tried this with numbers and then adding also 'a', 'b', 'c' and ' '. Those last ones could not be calculated with the result of expression Count(itemname), because they don't fit in one of the class ranges.

The listbox only show your class ranges, so they have nothing to do with the calculation expression count(itemname) in the chart