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
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
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
System Requirements
Development environment | Target platform | PLC libraries to include |
---|---|---|
TwinCAT V3.1.4024.54 or later | PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU | Tc3_Vision |