Hide Value If Empty In Pie Chart

Hi! I'm trying to make a Contacts app and I wanted to have a Location ratio overview screen and everything works fine but giving locations isnt required so I have a weird "0 or 1" on the chart too. How can I hide if the value is null?   Problem:   Location Ratio Overview:   Domain Model:
1 answers

My first thought is that you could use a Microflow (or Nanoflow) as the Datasource for the chart and exclude (probably by filtering out) those contacts with no location from the chart data.