Moving Average not working properly

Usman Jamil shared this problem 1 year ago
Defect Logged

Hi team

I'm trying to create a 10 week moving average graph of our bought and used. The data is as below

/Hf1r4IlR6AAAAAElFTkSuQmCC

The 10 week moving averages that Yellowfin is calculating are not correct.

/Mje7mDsAA9AAAAAElFTkSuQmCC

The issues are


1. It does not allow to skip the first 9, so first 9 averages aren't based on 10 records anyway.

2. The 10th record should be an average of previous 10 records i.e.

14/08/2016, 34844.00, 25022.00

Whereas yellowfin shows it as

14/08/2016, 28177.00, 39,254.00

I have double checked things through attached excel as well, but the averages are way off actual values.

Can someone suggest what could be going wrong here?

Kind Regards

Usman Jamil

Comments (7)

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1

Hi Usman,

It looks like Yellowfin is not including the current value in the calculation, and is instead counting the previous X moving average:

08547a5a8b80c0340b7622545284df10

I have raised this as a defect and will update this ticket when action is taken.

Please let me know if you have any questions in the meantime.

Regards,

Nathan

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1

Hi Nathan

I guess I attached incorrect snapshot, this is what I should have attached but thanks for setting it up at your end and pointing out the defect.

I see that 10 WMA are being calculated correctly but not being linked to correct date.

Further to this, Is there any way to skip the first 9 records since it shows a huge and incorrect spike when graphed?

51251df27c101c56d7c7216d1080ea50

Usman Jamil | Development Manager


(+613 8622 8506 : |*usmanj@sacsconsult.com.au

www.sacsconsult.com.au


 


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From: Yellowfin Support <support@yellowfin.bi>

Sent: Wednesday, June 6, 2018 2:42 AM

To: Usman Jamil <usmanj@sacsconsult.com.au>

Subject: New Comment in "Moving Average not working properly"

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1

Hi Usman,

Currently there is no way to adjust this function other than to create your own. If this is an urgent issue it may be possible to provide you with a basic example of that. If not, you will need to wait for an official fix on both of these (I will include the null gap into the defect ticket).

Nathan

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1

Thanks Nathan

Please send me an example of that function. I'll use that till a fix is released.

Usman

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1

Hi Usman,

Try the attached file. Load it through the plugin manager and it will appear as Moving Average (Corrected)

Nathan

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1

The corrected function works fine. Thanks for sending that through Nathan.

Feel free to close this ticket.

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1

Glad to hear it, I will let you know when this is done officially.

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