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Owning Palette: Statistical Analysis VIs

Installed With: Advanced Signal Processing Toolkit

Computes confidence limits of the mean and standard deviation values of the input univariate or multivariate (vector) time series. Wire data to the Xt input to determine the polymorphic instance to use or manually select the instance.

Details  Example

Use the pull-down menu to select an instance of this VI.

Select an instance TSA Confidence Limits (waveform)TSA Confidence Limits (array)TSA Vector Confidence Limits (waveform)TSA Vector Confidence Limits (array)

TSA Confidence Limits (waveform)

	Xt specifies the input univariate time series.
	confidence level specifies the level of confidence as a percentage to use in computing the confidence limits of the mean and standard deviation values. The default is 95.
	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. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	mean limits returns the confidence limits of mean value at the specified confidence level. upper returns the upper confidence limit of mean value at the specified confidence level. lower returns the lower confidence limit of mean value at the specified confidence level.
	std deviation limits returns the confidence limits of standard deviation value at the specified confidence level. upper returns the upper confidence limit of standard deviation value at the specified confidence level. lower returns the lower confidence limit of standard deviation value at the specified confidence level.
	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. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

TSA Confidence Limits (array)

	Xt specifies the input univariate time series.
	confidence level specifies the level of confidence as a percentage to use in computing the confidence limits of the mean and standard deviation values. The default is 95.
	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. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	mean limits returns the confidence limits of mean value at the specified confidence level. upper returns the upper confidence limit of mean value at the specified confidence level. lower returns the lower confidence limit of mean value at the specified confidence level.
	std deviation limits returns the confidence limits of standard deviation value at the specified confidence level. upper returns the upper confidence limit of standard deviation value at the specified confidence level. lower returns the lower confidence limit of standard deviation value at the specified confidence level.
	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. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

TSA Vector Confidence Limits (waveform)

	Xt specifies the input multivariate (vector) time series.
	confidence level specifies the level of confidence as a percentage to use in computing the confidence limits of the mean and standard deviation values. The default is 95.
	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. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	mean limits returns the confidence limits of mean value at the specified confidence level. upper returns the upper confidence limit of mean value at the specified confidence level. lower returns the lower confidence limit of mean value at the specified confidence level.
	std deviation limits returns the confidence limits of standard deviation value at the specified confidence level. upper returns the upper confidence limit of standard deviation value at the specified confidence level. lower returns the lower confidence limit of standard deviation value at the specified confidence level.
	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. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

TSA Vector Confidence Limits (array)

	Xt specifies the input multivariate (vector) time series. Each column of the 2D array represents a vector at certain time.
	confidence level specifies the level of confidence as a percentage to use in computing the confidence limits of the mean and standard deviation values. The default is 95.
	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. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	mean limits returns the confidence limits of mean value at the specified confidence level. upper returns the upper confidence limit of mean value at the specified confidence level. lower returns the lower confidence limit of mean value at the specified confidence level.
	std deviation limits returns the confidence limits of standard deviation value at the specified confidence level. upper returns the upper confidence limit of standard deviation value at the specified confidence level. lower returns the lower confidence limit of standard deviation value at the specified confidence level.
	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. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

TSA Confidence Limits Details

Confidence limits of the mean

This VI calculates confidence limits of the mean according to a test of the t distribution. If a time series satisfies the normal distribution with mean m and variance s², the statistical value satisfies t(n–1) distribution, where is the estimation of m, is the estimation of s, and n is the number of univariate time series X_t.

Given the confidence level a,

Confidence limits of the standard deviation

This VI calculates confidence limits of the standard deviation according to a test of c distribution. If a time series satisfies normal distribution with mean m and variance s², then the statistical value satisfies c²(n–1) distribution, where is the estimate of s, and n is the number of univariate time series X_t.

Given the confidence level a,

Example

Refer to the Series Statistical Analysis VI in the labview\examples\Time Series Analysis\TSAGettingStarted.llb for an example of using the TSA Confidence Limits VI.