F_VN_ContainerAverageVariance
Calculate the average and variance of elements in a container.
Syntax
Definition:
FUNCTION F_VN_ContainerAverageVariance : HRESULT
VAR_INPUT
    ipSrcContainer : ITcVnContainer;
END_VAR
VAR_IN_OUT
    fAverage       : LREAL;
    fVariance      : LREAL;
END_VAR
VAR_INPUT
    hrPrev         : HRESULT;
END_VAR
           Inputs
 Inputs
| Name | Type | Description | 
|---|---|---|
| ipSrcContainer | Source container (Arithmetic, point and vector element types are supported. For points and vectors, the euclidean norm is used.) | |
| hrPrev | HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) | 
           In/Outputs
 In/Outputs
| Name | Type | Description | 
|---|---|---|
| fAverage | LREAL | Returns the calculated average value | 
| fVariance | LREAL | Returns the calculated variance value | 
Further information
The table below shows which functions can be used for which container type:
| Types of containers | Usable functions | 
|---|---|
| Containers of elements | |
| Containers of vectors, each with 2 elements | |
| Containers of vectors, each with 3 elements | |
| Containers of vectors, each with 4 elements | 
Required License
TC3 Vision Base
 Return value
 Return value