encapsulated function fromFile
import Modelica.Utilities.Streams;
import Modelica_LinearSystems2.DiscreteTransferFunction;
input String fileName = "dtf.mat" "Name of the transfer function data file" annotation(
Dialog(loadSelector(filter = "MAT files (*.mat);; All files (*.*)", caption = "transfer function data file")));
input String numName = "n" "Name of the numenator of the transfer function";
input String denName = "d" "Name of the denominator of the transfer function";
output DiscreteTransferFunction dtf(n = fill(0, ns2), d = fill(0, ds2)) "Discrete transfer function";
end fromFile;