Usage
ordiGetData(call, env)
ordiParseFormula(formula, data, xlev = NULL)
ordiTerminfo(d, data)
ordiArrowMul(x, at = c(0,0), fill = 0.75)
centroids.cca(x, mf, wt)
permuted.index(n, strata)
ordispantree(ord, tree, display = "sites", ...)
pasteCall(call, prefix = "Call:")