SI Get Coefficients from System Model VI
Owning Palette: Model Management VIs
Installed With: System Identification Toolkit
Returns the coefficients of system model and the standard deviation and covariance of the coefficients. Use the SI Set Coefficients to System Model VI to apply coefficients and the standard deviation and covariance of the coefficients to system model. You must manually select the polymorphic instance to use.
Use the pull-down menu to select an instance of this VI.
 Place on the block diagram | Find on the Functions palette |
SI Get Coefficients from AR Model
 | system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
 | error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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 | coefficients returns the coefficients of the AR model. | ||||||
| std deviations returns the standard deviations of coefficients. Each value in std deviations is the standard deviation of the corresponding coefficient in coefficients. | ||||||
 | covariance returns the covariance of the values of the system model coefficients. | ||||||
 | error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ARX Model (SISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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 | coefficients of ARX model returns the coefficients of the ARX model.
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| std deviations returns the standard deviations of coefficients of ARX model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ARX Model (MISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of ARX model returns the coefficients of the ARX model.
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| std deviations returns the standard deviations of coefficients of ARX model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ARX Model (MIMO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of ARX model returns the coefficients of the ARX model.
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| std deviations returns the standard deviations of coefficients of ARX model.
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 | covariance returns the covariance of the values of the system model coefficients. | ||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ARMAX Model (SISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of ARMAX model returns the coefficients of the ARMAX model.
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| std deviations returns the standard deviations of coefficients of ARMAX model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ARMAX Model (MISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of ARMAX model returns the coefficients of the ARMAX model.
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| std deviations returns the standard deviations of coefficients of ARMAX model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from OE Model (SISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of OE model returns the coefficients of the output-error (OE) model.
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| std deviations returns the standard deviations of coefficients of OE model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from OE Model (MISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of OE model returns the coefficients of the output-error (OE) model.
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| std deviations returns the standard deviations of coefficients of OE model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from BJ Model (SISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of BJ model returns the coefficients of the Box-Jenkins (BJ) model.
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| std deviations returns the standard deviations of coefficients of BJ model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from BJ Model (MISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of BJ model returns the coefficients of the Box-Jenkins (BJ) model.
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| std deviations returns the standard deviations of coefficients of BJ model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from GL Model (SISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of GL model returns the coefficients of the general-linear (GL) model.
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| std deviations returns the standard deviations of coefficients of GL model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from GL Model (MISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of GL model returns the coefficients of the general-linear (GL) model.
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| std deviations returns the standard deviations of coefficients of GL model.
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| covariance returns the covariance of the values of the system model coefficients. | ||||||||||
| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
|
SI Get Coefficients from SS Model (SISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| Kalman gain returns the Kalman gain of the state-space model. The number of rows in Kalman gain equals the number of states in the state-space model. | ||||||||
| coefficients of state-space model returns the coefficients of the state-space model.
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| std deviations returns the standard deviations of coefficients of state-space model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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| initial states returns the initial states of the state-space model. The length of initial states equals the number of states of the system model. |
SI Get Coefficients from SS Model (MISO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| Kalman gain returns the Kalman gain of the state-space model. The number of rows in Kalman gain equals the number of states in the state-space model. | ||||||||
| coefficients of state-space model returns the coefficients of the state-space (SS) model.
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| std deviations returns the standard deviations of coefficients of state-space model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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| initial states returns the initial states of the state-space model. The length of initial states equals the number of states of the system model. |
SI Get Coefficients from SS Model (MIMO)
| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| Kalman gain returns the Kalman gain of the state-space model. The number of rows in Kalman gain equals the number of states in the state-space model. | ||||||||
| coefficients of state-space model returns the coefficients of the state-space (SS) model.
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| std deviations returns the standard deviations of coefficients of state-space model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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| initial states returns the initial states of the state-space model. The length of initial states equals the number of states of the system model. |
SI Get Coefficients from TF Model (SISO)
 | input type specifies whether to obtain the coefficients of the transfer function between the stimulus and the response of the system model or of the transfer function between the noise and the response of the system model.
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| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of transfer function model returns the coefficients of the transfer function model.
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| std deviations returns the standard deviations of coefficients of transfer function model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from TF Model (MISO)
| input type specifies whether to obtain the coefficients of the transfer function between the stimulus and the response of the system model or of the transfer function between the noise and the response of the system model.
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| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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 | coefficients of transfer function model returns the coefficients of the transfer function (TF) model.
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| std deviations returns the standard deviations of coefficients of transfer function model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from TF Model (MIMO)
| input type specifies whether to obtain the coefficients of the transfer function between the stimulus and the response of the system model or of the transfer function between the noise and the response of the system model.
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| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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 | coefficients of transfer function model returns the coefficients of the transfer function (TF) model.
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| std deviations returns the standard deviations of coefficients of transfer function model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ZPK Model (SISO)
| input type specifies whether to obtain the poles and zeros of the transfer function between the stimulus and the response of the system model or of the transfer function between the noise and the response of the system model.
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| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of zero-pole-gain model returns the coefficients and gain of the zero-pole-gain (ZPK) model.
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| std deviations returns the standard deviations of coefficients of zero-pole-gain model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ZPK Model (MISO)
| input type specifies whether to obtain the poles and zeros of the transfer function between the stimulus and the response of the system model or of the transfer function between the noise and the response of the system model.
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| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of zero-pole-gain model returns the coefficients and gain of the zero-pole-gain (ZPK) model.
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| std deviations returns the standard deviations of coefficients of zero-pole-gain model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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SI Get Coefficients from ZPK Model (MIMO)
| input type specifies whether to obtain the poles and zeros of the transfer function between the stimulus and the response of the system model or of the transfer function between the noise and the response of the system model.
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| system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. | ||||||
| error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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| coefficients of zero-pole-gain model returns the coefficients and gain of the zero-pole-gain (ZPK) model.
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| std deviations returns the standard deviations of coefficients of zero-pole-gain model.
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| error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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Example
Refer to the Read Information from Model VI in the labview\examples\System Identification\Getting Started\General.llb for an example of using the SI Get Coefficients from System Model VI.
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