Calculating the Mean + k*sigma Value

The Statistics menu option Quantiles and probabilities > Mean + k*sigma computes the sum of the mean and a multiple of the standard deviation for all selected field quantities. For each selected quantity, a single result object is created. Each result object is a field vector containing the desired value at each mesh position.


Note:  The scaling factor is user-specified.


The resulting limit value q is defined by:

where Y denotes the quantity, j denotes the mesh position, and k denotes the user-specified scaling factor.

Usage

  • Area of application: Robustness evaluation based on safety margins (such as distances with respect to the mean value).

  • Use negative multiples to get lower threshold values.