I have a knn classification model.i want to simulate the same in simulink

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pavan sunder
pavan sunder 2016-12-13
评论： Sean de Wolski 2016-12-14
I have a knn simulation model. I used functions fitcknn and predict in my script...i want to simulate the same in smulink..kindly suggest me which block to be used for fitcknn and predict in simulink

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回答（1 个）

Sean de Wolski
Sean de Wolski 2016-12-13
You could use the MATLAB function block to call your KNN model from Simulink.
  2 个评论
pavan sunder
pavan sunder 2016-12-14
编辑：pavan sunder 2016-12-14
i tried the same not working. i am unable take the KNN model as input. kindly help me with a more detail explanation..
i wrote the following code in my matlab function block
function y = KNNclass(mdl2,ts)
y=predict(mdl2,ts);
end
the error messagee i received is
Unsupported input format for From Workspace block 'tt/From Workspace'. Available formats are double non-complex matrix, a structure with or without time, or a structure with MATLAB timeseries as leaf nodes. All formats require the data to be finite (not Inf or NaN).
Sean de Wolski
Sean de Wolski 2016-12-14
It shouldn't be in the from workspace block, it should be in a MATLAB function block. Here's how I would set it up. Note that the knn classifier is already trained and stored in a MAT file. You could swap that out to a call to train it if necessary.

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