When the raw data are expressed as distances rather than values at individual
points, a correlogram can also be constructed using the Mantel
coefficient (Sokal *et al.* 1987). For this analysis,
the Mantel correlation is calculated between the data distance matrix
and the weight matrix. In this case, *w**ij* contains a
0 if points *i* and *j*
are connected, and a 1 if they are not. The reversed weighting scheme
is used because the data are expressed as distances; therefore high values
(*i.e.*, 1) indicate dissimilarity,
while low values (*i.e.*, 0) indicate
similarity. The Mantel correlation is then plotted versus distance as
in any other correlogram.

Menu: | Analysis 2→Scattered Data→Correlograms→Mantel Correlograms |

Button: | |

Batch: | MantelCorrelogram |

Mantel Correlograms window.

Explain options and give example