Calculates the floor modulus of field value and the divisor, e.g. x mod y where y is the divisor and x is a field. Both the field or divisor are floor rounded before the calculation.

asstringfalse_modThe name of the output field.
divisornumbertrue The divisor to use, e.i. x mod divisor.
fieldstringtrue The name of the input field. [a]

[a] If an argument name is not given, field is the default argument.