Spotfire String Value on Y Axis of KPI

Hi All,

Got another KPI Question here.

I was playing around with the Y axis value on the KPI chart of Spotfire and I noticed that it seems as if you cannot put a string value on this field.

Is this correct? Can someone confirm?

I'm new to spotfire and I just want to make sure that I am not doing something incorrectly.

Thanks!

-Missy