Description
This tool was designed to work with an analysis field that contains a variety of values in each time step. If the values for binned features are all 1, for example, there is no variation in the values, and the computed variance will be zero. When the variance is zero, results cannot be computed.
Solution
Choose an analysis field or location with a variety of values in each time step. Values are calculated using binned values; change the size of your bins or time steps to change the calculated values.