How to Change Null/Empty Values to "0" in Analyst Studio
Once you have created a new visualization, add a new field.

Select "Calculated Field".

Give the field a new name.
For this example, we will use Applied Phosphorus and change any Null/Empty values into "0"s.

Type in this formula with the desired attribute (Remember, for this example, we're using "Total Phosphorus Nutrient Applied".) and click the "Create Field" button.

IF(LEN([Total Phosphorus Nutrient Applied])>0,[Total Phosphorus Nutrient Applied],"0")
This new Field can be added and used in your chart.

If you have any questions or need assistance, contact your advisor support representative.