PIVMat Function Reference | << Prev | Next >> |

Average of vector/scalar fields

AF = **averf**(F) returns the average of the vector/scalar fields F.
AF is a field of the same type as F, whose elements are the average
of the elements of the fields F.
Depending on the nature of the fields F, the field **averf**(F) is usually
called "Ensemble average", "Phase average", or "Time average".
By default, **averf** considers that the zero elements of F are erroneous,
and does not include them in the computations. If however you want to
force the zero elements to be included in the computations, specify
**averf**(F,'0').
[AF RMS FR] = **averf**(F,..) also returns the RMS field and the
fluctuation rate field of the vector/scalar fields F.
- RMS is a scalar field, whose elements are the rms of the elements
of the fields F.
- FR is a scalar field, whose elements are the local RMS normalized
by the local norm of AF.
If no output argument is specified, the average field AF is displayed.

**Examples**
v = loadvec('*.vc7');
showf(**averf**(v));
[af rms fr]=**averf**(vec2scal(v,'uy'));
showf(fr,'clim',[0 1]);
**averf** *.vc7 % shows the average of the files matching *.vc7

**See Also**
smoothf, spaverf, subaverf, azaverf, phaseaverf
Published output in the Help browser
showdemo **averf**

Previous: addnoisef | Next: azaverf |

2005-2016 PIVMat Toolbox 4.01