I have a model and need to compute a new value from two other values upstream, and then feed the new value to the Kernel Density tool.
Here is the formula I am trying to reproduce in the "Calculate Values" tool:
Here is what the formula looks like in Excel: =((2/(3*n))^(1/4))*(σ)
For example, if n = 9 and σ = 42840 it results in the correct answer of 22350
Here is the formula as I currently have it in "Calculate Values Tool": ((2/(3*%Row Count%))**(1/4))*(%SD%)
It does not return the correct value. Am I missing a parenthesis somewhere?