Determining the area of a hystresis loop

Hi, I want to calculate area of a hysteresis loop, is there any coomand in matlab for computing the area of something (the hysteresis loop will be defined in a matrix in matlab)? or should i wrote a code for it?

[bym]

post some data

Answer 1

[José-Luis]

Yes, there are built-in functions to calculate the area of closed polygons:

 doc polyarea