[news.eclipse.birt] Running Sum strange or wrong - up and to the right

[lars.johansson@xxxxxxxx (Lars Johansson)]

Hi,

I have discovered trouble when using Running Sum in charts. It doesn't 
seem to work as it should, particularly when combined with grouping on 
x-axis. When searching this newsgroup I've found some entries however the 
situations don't seem to apply to me. 

Background:
In my situation I have a chart (bar, line, area) with week number on the 
x-axis and sum on the y-axis. The data set has a number of columns of 
which week number is one. Each row in the data set also has a column with 
value 1. 

E.g.
Column weeknbr, Column test
801, 1
802, 1
803, 1
803, 1
803, 1
804, 1
805, 1
805, 1

I can display this with Running Sum in chart like "Up and to the right" if 
I just have row["weeknbr"] on x-axis and row["test"] on y-axis with 
Running Sum. The example above would then have 8 entries on x-axis and you 
would see a straight line going up and to the right.

However I want to have 5 entries on the x-axis, so I enable grouping on 
x-axis value (tried weeknbr both as numeric and string). The grouping 
works but Running Sum seems to fail. On the y-axis I only get value 1. 
What I want is:
801, 1
802, 2
803, 5, 
804, 6, 
805, 8

Is it possible to achieve this, if so how? with grouping on x-axis?

- http://dev.eclipse.org/newslists/news.eclipse.birt/msg10948.html
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=155090


Best regards
Lars