System Identification Toolbox

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The "nkshift" command can only be used for data sets with an input.

Last post by fyousefi « Tue Mar 02, 2021 11:17 am

by fyousefi » Tue Mar 02, 2021 11:17 am

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Last post by fyousefi
Tue Mar 02, 2021 11:17 am
The third input argument of the "misdata" command must be a positive scalar that represents tolerance.

Last post by fyousefi « Tue Mar 02, 2021 11:16 am

by fyousefi » Tue Mar 02, 2021 11:16 am

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Last post by fyousefi
Tue Mar 02, 2021 11:16 am
When the "misdata" command is called with three input arguments, the second input must be a positive integer that repres

Last post by fyousefi « Tue Mar 02, 2021 11:16 am

by fyousefi » Tue Mar 02, 2021 11:16 am

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Last post by fyousefi
Tue Mar 02, 2021 11:16 am
The second input argument of the "misdata" command must be an IDMODEL object or an integer.

Last post by fyousefi « Tue Mar 02, 2021 11:15 am

by fyousefi » Tue Mar 02, 2021 11:15 am

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Last post by fyousefi
Tue Mar 02, 2021 11:15 am
The data must be a time domain IDDATA object. Type "help iddata" for more information.

Last post by fyousefi « Tue Mar 02, 2021 11:15 am

by fyousefi » Tue Mar 02, 2021 11:15 am

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Last post by fyousefi
Tue Mar 02, 2021 11:15 am
All the objects being merged must have the same number of inputs.

Last post by fyousefi « Tue Mar 02, 2021 11:14 am

by fyousefi » Tue Mar 02, 2021 11:14 am

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Last post by fyousefi
Tue Mar 02, 2021 11:14 am
Merged data sets must all be either time-domain or frequency-domain.

Last post by fyousefi « Tue Mar 02, 2021 11:13 am

by fyousefi » Tue Mar 02, 2021 11:13 am

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Last post by fyousefi
Tue Mar 02, 2021 11:13 am
The "ifft" command requires data with equi-spaced frequencies ranging from 0 to the Nyquist frequency. Type "help iddata

Last post by fyousefi « Tue Mar 02, 2021 11:13 am

by fyousefi » Tue Mar 02, 2021 11:13 am

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532 Views

Last post by fyousefi
Tue Mar 02, 2021 11:13 am
The first input argument of the "ifft" command must be a frequency-domain data object. Use the "fft" command to convert

Last post by fyousefi « Tue Mar 02, 2021 11:12 am

by fyousefi » Tue Mar 02, 2021 11:12 am

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516 Views

Last post by fyousefi
Tue Mar 02, 2021 11:12 am
The resampling factor must be specified as a positive number.

Last post by fyousefi « Tue Mar 02, 2021 11:12 am

by fyousefi » Tue Mar 02, 2021 11:12 am

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Last post by fyousefi
Tue Mar 02, 2021 11:12 am
The indicated frequency band cannot be covered by { number,integer} sinusoids over the DFT frequency grid. Either incre

Last post by fyousefi « Tue Mar 02, 2021 11:11 am

by fyousefi » Tue Mar 02, 2021 11:11 am

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544 Views

Last post by fyousefi
Tue Mar 02, 2021 11:11 am
In the "idinput(N,TYPE,...)" command, TYPE must be one of ''rgs'', ''rbs'', ''prbs'' or ''sine''.

Last post by fyousefi « Tue Mar 02, 2021 11:10 am

by fyousefi » Tue Mar 02, 2021 11:10 am

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518 Views

Last post by fyousefi
Tue Mar 02, 2021 11:10 am
In the "idinput" command, the number of sinusoids and the number of trials must be larger than 1.

Last post by fyousefi « Tue Mar 02, 2021 11:10 am

by fyousefi » Tue Mar 02, 2021 11:10 am

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481 Views

Last post by fyousefi
Tue Mar 02, 2021 11:10 am
In the "idinput(N,TYPE,BAND,...)" command, the value of the first element of BAND must be less than the second one.

Last post by fyousefi « Tue Mar 02, 2021 11:09 am

by fyousefi » Tue Mar 02, 2021 11:09 am

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506 Views

Last post by fyousefi
Tue Mar 02, 2021 11:09 am
In the "idinput(N,...)" command, N must be a row vector of 1, 2, or 3 positive integers.

Last post by fyousefi « Tue Mar 02, 2021 11:08 am

by fyousefi » Tue Mar 02, 2021 11:08 am

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475 Views

Last post by fyousefi
Tue Mar 02, 2021 11:08 am
The models cannot be merged because they lack both the response and the noise spectrum data.

Last post by fyousefi « Tue Mar 02, 2021 11:08 am

by fyousefi » Tue Mar 02, 2021 11:08 am

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580 Views

Last post by fyousefi
Tue Mar 02, 2021 11:08 am
Merging the response data requires all IDFRD objects to contain nonempty values for the "CovarianceData" property.

Last post by fyousefi « Tue Mar 02, 2021 11:07 am

by fyousefi » Tue Mar 02, 2021 11:07 am

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516 Views

Last post by fyousefi
Tue Mar 02, 2021 11:07 am
Invalid filter specification. Type "help idfilt" for more information.

Last post by fyousefi « Tue Mar 02, 2021 11:07 am

by fyousefi » Tue Mar 02, 2021 11:07 am

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511 Views

Last post by fyousefi
Tue Mar 02, 2021 11:07 am
All-stop filtering of frequency-domain data is not supported. Make sure that the desired passband has at least one frequ

Last post by fyousefi « Tue Mar 02, 2021 11:07 am

by fyousefi » Tue Mar 02, 2021 11:07 am

0 Replies

509 Views

Last post by fyousefi
Tue Mar 02, 2021 11:07 am
Filter coefficients cannot be specified using cell array when data contains experiments with unequal sample times.

Last post by fyousefi « Tue Mar 02, 2021 11:06 am

by fyousefi » Tue Mar 02, 2021 11:06 am

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505 Views

Last post by fyousefi
Tue Mar 02, 2021 11:06 am
Data contains experiments with unequal sample times. Either use a continuous-time filter or filter each experiment separ

Last post by fyousefi « Tue Mar 02, 2021 11:06 am

by fyousefi » Tue Mar 02, 2021 11:06 am

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516 Views

Last post by fyousefi
Tue Mar 02, 2021 11:06 am
Sample time of the filter does not match that of the data.

Last post by fyousefi « Tue Mar 02, 2021 11:05 am

by fyousefi » Tue Mar 02, 2021 11:05 am

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488 Views

Last post by fyousefi
Tue Mar 02, 2021 11:05 am
The specified model for the filter could not be discretized to the sample time of the data. Try using a discrete-time mo

Last post by fyousefi « Tue Mar 02, 2021 11:05 am

by fyousefi » Tue Mar 02, 2021 11:05 am

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535 Views

Last post by fyousefi
Tue Mar 02, 2021 11:05 am
In the "idfilt" command, the "FilterOrder" option must be specified using a positive integer.

Last post by fyousefi « Tue Mar 02, 2021 11:04 am

by fyousefi » Tue Mar 02, 2021 11:04 am

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479 Views

Last post by fyousefi
Tue Mar 02, 2021 11:04 am
The first element must be smaller than the second element in each row of the passband matrix.

Last post by fyousefi « Tue Mar 02, 2021 11:04 am

by fyousefi » Tue Mar 02, 2021 11:04 am

0 Replies

473 Views

Last post by fyousefi
Tue Mar 02, 2021 11:04 am

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