Good morning,
I'm building a SAS Viya dashboard that shows numeric visuals such as bar charts, line-graphs, etc. For example, I may create a bar chart that shows how many people are in each racial subgroup. In my visuals, some data cannot be displayed because it could potentially identify people in the dataset. I'm trying to find a way to:
I pre-aggregate and apply suppression rules on the back end (rather than letting SAS do any aggregations). In order to abide by our suppression policies, any row that should NOT show on the dashboard is coded in the data as follows (all metrics are non-negative):
At present, I'm just not displaying any suppressed data; however, this is causing confusion for data viewers. I'm looking for a way to indicate that data isn't showing because of suppression issues, rather than something that is wrong with our calculations.
Visual Analytics provides the capability to suppress data items if individual values could easily be inferred. Here are a couple of links that might be helpful:
Visual Analytics provides the capability to suppress data items if individual values could easily be inferred. Here are a couple of links that might be helpful:
This was effective. My solution was to use SAS's Suppress() function to suppress my negative-coded values.
This is like Statistical Disclosure Control (SDC) !
You might want to look into the cell key method for protecting (Census) data.
Or this approach (an alternative method) :
Paper 1603-2014 Data Coarsening and Data Swapping Algorithms
Tom Krenzke, Katie Hubbell, Mamadou Diallo, Amita Gopinath, Sixia Chen
Westat, 1600 Research Blvd, Rockville MD, 20850
https://support.sas.com/resources/papers/proceedings14/1603-2014.pdf
BR, Koen
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