Download Help (Windows Only) |

**Owning Palette:** Statistical Analysis VIs

**Requires:** Advanced Signal Processing Toolkit

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

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

Xt specifies the 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 node runs. This input provides standard error in functionality. | |||||

mean limits returns the confidence limits of the mean value at the specified confidence level.
| |||||

std deviation limits returns the confidence limits of the standard deviation value at the specified confidence level.
| |||||

error out contains error information. This output provides standard error out functionality. |

Xt specifies the 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 node runs. This input provides standard error in functionality. | |||||

mean limits returns the confidence limits of the mean value at the specified confidence level.
| |||||

std deviation limits returns the confidence limits of the standard deviation value at the specified confidence level.
| |||||

error out contains error information. This output provides standard error out functionality. |

Xt specifies the 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 node runs. This input provides standard error in functionality. | |||||

mean limits returns the confidence limits of the mean value at the specified confidence level.
| |||||

std deviation limits returns the confidence limits of the standard deviation value at the specified confidence level.
| |||||

error out contains error information. This output provides standard error out functionality. |

Xt specifies the 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 node runs. This input provides standard error in functionality. | |||||

mean limits returns the confidence limits of the mean value at the specified confidence level.
| |||||

std deviation limits returns the confidence limits of the standard deviation value at the specified confidence level.
| |||||

error out contains error information. This output provides standard error out functionality. |

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 s^{2}, 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,

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 s^{2}, then the statistical value satisfies c^{2}(*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,

*NIST/SEMATECH e-Handbook of Statistical Methods*, http://www.itl.nist.gov/div898/handbook, 2005.

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

Helpful

Not Helpful