A data. It can be used to directly compare two matrices or two
rasters, or it can be used to check a <code><a href="samc-class.html">samc-class</a></code> object
against a matrix or raster.</p>
<p>It can also be used to check a numeric vector against a <code><a href="samc-class.html">samc-class</a></code> object
created from a P matrix. In this case, the length of the vector must be equal to
the number of transient states. If the transient states are named, the vector
must contain the same names.</p>
<p>The