System Identification Toolbox

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The "Variable" property must be set to ''s'' or ''p'' for continuous-time systems, and to ''z^-1'' or ''q^-1'' for discr

Last post by fyousefi « Thu Mar 04, 2021 6:34 am

by fyousefi » Thu Mar 04, 2021 6:34 am

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431 Views

Last post by fyousefi
Thu Mar 04, 2021 6:34 am
The value of the property cannot contain +/-Inf. Use NaNs to denote unknown values.

Last post by fyousefi « Thu Mar 04, 2021 6:33 am

by fyousefi » Thu Mar 04, 2021 6:33 am

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450 Views

Last post by fyousefi
Thu Mar 04, 2021 6:33 am
The values of the "Numerator" and "Denominator" properties must be nonempty numeric row vectors or cell arrays of such v

Last post by fyousefi « Thu Mar 04, 2021 6:33 am

by fyousefi » Thu Mar 04, 2021 6:33 am

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722 Views

Last post by fyousefi
Thu Mar 04, 2021 6:33 am
When creating an array of transfer functions with the "idtf" command, the dimensions 3 and above of the Numerator and De

Last post by fyousefi « Thu Mar 04, 2021 6:32 am

by fyousefi » Thu Mar 04, 2021 6:32 am

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490 Views

Last post by fyousefi
Thu Mar 04, 2021 6:32 am
The value of the obsolete property "InitialState" must be one of: ''auto'', ''estimate'', ''zero'', ''backcast''.

Last post by fyousefi « Thu Mar 04, 2021 6:32 am

by fyousefi » Thu Mar 04, 2021 6:32 am

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644 Views

Last post by fyousefi
Thu Mar 04, 2021 6:32 am
Algorithm option "FixedParameter" is obsolete. Use the "Structure" model property to specify parameter constraints.

Last post by fyousefi « Thu Mar 04, 2021 6:31 am

by fyousefi » Thu Mar 04, 2021 6:31 am

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458 Views

Last post by fyousefi
Thu Mar 04, 2021 6:31 am
Setting "nk" to a value > 1 causes input delay to be set to nk-1. Note that "nk" property is obsolete. Use "InputDelay"

Last post by fyousefi « Thu Mar 04, 2021 6:31 am

by fyousefi » Thu Mar 04, 2021 6:31 am

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442 Views

Last post by fyousefi
Thu Mar 04, 2021 6:31 am
The value of the "Structure" property must be an object of class.

Last post by fyousefi « Thu Mar 04, 2021 6:30 am

by fyousefi » Thu Mar 04, 2021 6:30 am

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335 Views

Last post by fyousefi
Thu Mar 04, 2021 6:30 am
Incorrect size specified for the value of the "Structure" property. Type "doc for more information.

Last post by fyousefi « Thu Mar 04, 2021 6:27 am

by fyousefi » Thu Mar 04, 2021 6:27 am

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386 Views

Last post by fyousefi
Thu Mar 04, 2021 6:27 am
The "OutputDelay" property of an identified model has a fixed zero value.

Last post by fyousefi « Thu Mar 04, 2021 6:26 am

by fyousefi » Thu Mar 04, 2021 6:26 am

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557 Views

Last post by fyousefi
Thu Mar 04, 2021 6:26 am
The polynomial is specified using a array, while it is stored in the model as a array.

Last post by fyousefi « Thu Mar 04, 2021 6:26 am

by fyousefi » Thu Mar 04, 2021 6:26 am

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582 Views

Last post by fyousefi
Thu Mar 04, 2021 6:26 am
The transformation to canonical form is ill-conditioned. This could lead to numerical problems when using the model for

Last post by fyousefi « Thu Mar 04, 2021 6:24 am

by fyousefi » Thu Mar 04, 2021 6:24 am

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451 Views

Last post by fyousefi
Thu Mar 04, 2021 6:24 am
The value of the algorithm property "MaxSize" is too small. This may lead to errors during estimation or analysis of the

Last post by fyousefi « Thu Mar 04, 2021 6:24 am

by fyousefi » Thu Mar 04, 2021 6:24 am

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430 Views

Last post by fyousefi
Thu Mar 04, 2021 6:24 am
This model has no white component in the measurement noise. This may cause errors or unexpected results with discretizat

Last post by fyousefi « Thu Mar 04, 2021 6:23 am

by fyousefi » Thu Mar 04, 2021 6:23 am

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402 Views

Last post by fyousefi
Thu Mar 04, 2021 6:23 am
Using the "Algorithm" structure for specifying the estimation options is deprecated. Use the estimation option sets crea

Last post by fyousefi « Thu Mar 04, 2021 6:22 am

by fyousefi » Thu Mar 04, 2021 6:22 am

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355 Views

Last post by fyousefi
Thu Mar 04, 2021 6:22 am
SearchMethod = "GNS" is obsolete. Use SearchMethod = ''GN'' instead.

Last post by fyousefi « Thu Mar 04, 2021 6:21 am

by fyousefi » Thu Mar 04, 2021 6:21 am

0 Replies

350 Views

Last post by fyousefi
Thu Mar 04, 2021 6:21 am
Algorithm property "SearchDirection" is obsolete. Use the property "SearchMethod" instead.

Last post by fyousefi « Thu Mar 04, 2021 6:21 am

by fyousefi » Thu Mar 04, 2021 6:21 am

0 Replies

374 Views

Last post by fyousefi
Thu Mar 04, 2021 6:21 am
The values of properties "nk" and "InputDelay" are both non-zero. The total delay will be the sum of these values.

Last post by fyousefi « Thu Mar 04, 2021 6:20 am

by fyousefi » Thu Mar 04, 2021 6:20 am

0 Replies

437 Views

Last post by fyousefi
Thu Mar 04, 2021 6:20 am
The input delays have been set to the same value

Last post by fyousefi « Thu Mar 04, 2021 6:20 am

by fyousefi » Thu Mar 04, 2021 6:20 am

0 Replies

365 Views

Last post by fyousefi
Thu Mar 04, 2021 6:20 am
cannot be used in the "FixedParameter" algorithm property because it is not a valid parameter name for the model.

Last post by fyousefi « Thu Mar 04, 2021 6:19 am

by fyousefi » Thu Mar 04, 2021 6:19 am

0 Replies

420 Views

Last post by fyousefi
Thu Mar 04, 2021 6:19 am
Response cannot be computed since model contains NaNs.

Last post by fyousefi « Thu Mar 04, 2021 6:18 am

by fyousefi » Thu Mar 04, 2021 6:18 am

0 Replies

396 Views

Last post by fyousefi
Thu Mar 04, 2021 6:18 am
Multi-output models cannot be configured to use double format for B and F polynomials.

Last post by fyousefi « Thu Mar 04, 2021 6:17 am

by fyousefi » Thu Mar 04, 2021 6:17 am

0 Replies

323 Views

Last post by fyousefi
Thu Mar 04, 2021 6:17 am
The second input argument of the "setPolyFormat" command must be ''cell'' or ''double''.

Last post by fyousefi « Thu Mar 04, 2021 6:17 am

by fyousefi » Thu Mar 04, 2021 6:17 am

0 Replies

376 Views

Last post by fyousefi
Thu Mar 04, 2021 6:17 am
For multi-input multi-output (MIMO) models both input and output indices must be given.

Last post by fyousefi « Thu Mar 04, 2021 6:16 am

by fyousefi » Thu Mar 04, 2021 6:16 am

0 Replies

508 Views

Last post by fyousefi
Thu Mar 04, 2021 6:16 am
The value of the "CanonicalIndices" property must be a vector of non-negative integers.

Last post by fyousefi « Thu Mar 04, 2021 6:16 am

by fyousefi » Thu Mar 04, 2021 6:16 am

0 Replies

457 Views

Last post by fyousefi
Thu Mar 04, 2021 6:16 am

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