A RandomResponseFrequency is an object used to define frequency over a range of modes.
import step mdb.models[name].steps[name].freq[i]
The RandomResponseFrequency object has the following members:
A Float specifying the lower limit of the frequency range in cycles per time.
A Float specifying the upper limit of the frequency range in cycles per time.
An Int specifying the number of points between eigenfrequencies at which the response should be calculated.
A Float specifying the bias parameter.