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MIMO Transfer Function #557
Description
Activity
Nest them one more pair of
[]to make it list of lists as if your are doing a 3d array. Currently you are trying to build[1] [2] ----------- [ 1 2 ] [ 3 4 ]
So you need
Numv = [[[1], [2]]] Denv = [[[1,2], [3,4]]]
@ilayn beat me to it, but here is a bit more detail.
As you have it written, the meaning is ambiguous: are you trying to create a 2-input, 1-output system or a 1-input, 2-output system?
For 2-input, 1-output, use
H = control.tf([[ [1], [2] ]], [[ [1, 2], [3, 4] ]] )For 1-input, 2-output, use
H = control.tf([ [[1]], [[2]] ], [ [[1, 2]], [[3, 4]] ])Thank you!
I was trying to create a 2-input 1-output system.
You solution worked like a charm!
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on Mar 12, 2021
Let's say I have a MIMO system where the numerator is
NUMv = [[1], [2]]and the denomenator
DENv = [[1, 2], [3, 4]]and I try to make a transfer function by
Hv = tf(NUMv, DENv)This is how I would set it up according to how I've understood the docs.
However, I get this error message:
"TypeError: The numerator and denominator inputs must be scalars or vectors (for SISO), or lists of lists of vectors (for SISO or MIMO)."
What am I missing? What triggers the TypeError? I've tried setting it up the same way in Matlab, which was successful, but I need it to work in Python as well.
Thanks in advance!