I'm pretty sure you are using the package Picante. When I received the error
you described in my own project, it was due to the naming of species in the
community matrix and the phylogenetic tree being slightly different (one
separated latin binomials with a space, the other with an underscore). Wh
Hi there
In rpart, one can get a graph of R-squared (using rsq.rpart (fit)), in which
the x axis is the number of splits, and which contains two lines - an
"apparent" R squared and an Rsquared based on the x error.
I would like to caclulate these R-squared values, but cannot work out from the
Hi there,
I would like to find a more efficient way of permuting the rows and columns of
a symmetrical matrix that represents ecological or actual distances between
objects in space. The permutation is of the type used in a Mantel test.
Specifically, the permutation has to accomplish somethi
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