Value Average returning incorrect average when filtering?

Hi,
So I am having a really weird issue with domo. I have a data set with 2662 rows and am trying to average let's say a column called marks for these students.
I have created a column called percentile ranking which I created using ETL where I can see how high or low the mark is in that data set.
When I create a single value card to show the average of the whole data set the average is correct.
However when I filter out the highest 10% marks (so I filter to show percentile over and equal to 0.1) the average is incorrect. Bear in mind I have 0 values before the filtering and after so that should not be affecting the average.
Do you know why it is not showing me the right average? I have tried using beast mode for the average, as well as just column value average in single value card, same issue. Tried doing sum/count of column still same issue.
Thanks!
Answers
-
Hi @ibtisamyyy, could you please share your calculations for that 'Percentile Ranking'?
9 -
Hi,
I used rank and window with a group by after to get the ranking of that data set. I divided the rank by highest rank to get the % of the rows. So example is mark 0 then % = 1 , Mark 7 then % 0.4 Mark 8 then % 0.2 etc... the higher the number the smaller the percentage. I was trying to get rid of the highest marks as they are outliers.
0 -
Works now, had some null values I was not aware of that were affecting the calculations for some reason. IFNULL solved it.
1 -
Nice! Yeah typically nulls are ignored when calculating averages but I guess with your usecase with the Rank and Window function etc, Domo didn't know how to handle the blank values.
6
Categories
- All Categories
- 2K Product Ideas
- 2K Ideas Exchange
- 1.6K Connect
- 1.3K Connectors
- 311 Workbench
- 7 Cloud Amplifier
- 9 Federated
- 3K Transform
- 114 SQL DataFlows
- 654 Datasets
- 2.2K Magic ETL
- 4.1K Visualize
- 2.5K Charting
- 803 Beast Mode
- 79 App Studio
- 44 Variables
- 758 Automate
- 188 Apps
- 480 APIs & Domo Developer
- 73 Workflows
- 17 DomoAI
- 40 Predict
- 17 Jupyter Workspaces
- 23 R & Python Tiles
- 408 Distribute
- 119 Domo Everywhere
- 279 Scheduled Reports
- 10 Software Integrations
- 141 Manage
- 137 Governance & Security
- 8 Domo Community Gallery
- 47 Product Releases
- 12 Domo University
- 5.4K Community Forums
- 41 Getting Started
- 31 Community Member Introductions
- 114 Community Announcements
- 4.8K Archive