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Bar charts options?... [message #1112239] Thu, 19 September 2013 05:42 Go to next message
Eclipse UserFriend
Hi everyone!

I'm currently creating a bunch of charts in a report, and I'm having some difficulty in getting them the way i had imagined.

Is it possible to use both side-by-side and stacked bars in the same graph? I'm trying to compare multiple sets of coupled values, and I'd like to have all values in evidence. Is there any way I can make this happen?

Furthermore, in another graph I'd like to have a bar graph with an overlapping line indicating the median value of the represented bars.

I keep getting the feeling that I'm missing something and that all this should be possible.


Thans for your attention!
Paolo

[Updated on: Thu, 19 September 2013 05:56] by Moderator

Re: Bar charts options?... [message #1112512 is a reply to message #1112239] Thu, 19 September 2013 16:35 Go to previous messageGo to next message
Eclipse UserFriend
Creating multiple series on a stacked bar and then having a field as optional series grouping should do what you're wanting, but I don't know what your data is like, so I'm not totally certain. As for the median value line, you could use a marker line in the chart and set its value dynamically based on your calculation.
Re: Bar charts options?... [message #1112812 is a reply to message #1112512] Fri, 20 September 2013 03:46 Go to previous messageGo to next message
Eclipse UserFriend
Thanks for your suggestion Micheal!

I'll try using the stacked bars as you've said, and I'll let you know the results.

As for the marker, I actually already tried that, but I wasn't even sure it accepted dinamic values. Since there isn't an equation builder for that particular element, I tried simply putting in the formula I needed, obtaining a "null" as a result.

I'll review everything from scrap... -_-"

Thanks again!

Paolo
Re: Bar charts options?... [message #1113120 is a reply to message #1112812] Fri, 20 September 2013 13:20 Go to previous messageGo to next message
Eclipse UserFriend
For the marker, you'll need to calculate the value and set the marker in script. You can place a marker on the chart in the design and simply change its value in your chart script to make it easier.
Re: Bar charts options?... [message #1114848 is a reply to message #1113120] Mon, 23 September 2013 05:41 Go to previous messageGo to next message
Eclipse UserFriend
Ok, here's what I do:

Format Chart -> Y-Axis -> Markers -> Add Line

In the "Value" option field of the line i try to call the DataCube element (a calculated Max) just as it wuold be called in an equation editor. It doesn't work.

While setting the value as a simple number works properly, every time I try to set it dinamically what I insert in the field disappers just as soon as I click on anithing else or even if I change window. Is this normal? :/

Sorry if I'm being thick-headed, but I don't get how this works...

Thanks again for your time,
Paolo

Re: Bar charts options?... [message #1115743 is a reply to message #1114848] Tue, 24 September 2013 10:16 Go to previous messageGo to next message
Eclipse UserFriend
Ok, since I'm unable to set the dynamic values by any means, I'm trying to proceed by code.

Checking the XML Source of the report I saw that if I set a fixed value (i.e.: 4000), the following code is added:


        <Value xsi:type="data:NumberDataElement">
          <Value>4000.0</Value>
        </Value>



So I'm guessing that if I knew the exact setting of xsi:type to set a script I could do it right here in the code.

Does anyone knows hao to do this?

Thanks!
Re: Bar charts options?... [message #1117135 is a reply to message #1115743] Thu, 26 September 2013 02:05 Go to previous message
Eclipse UserFriend
Sorry for the delay. Here's an example from the BIRT Exchange DevShare that shows how to create dynamic marker lines:

BIRT Exchange DevShare - Dynamic Marker Lines
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