Description Usage Arguments Details Value Author(s) See Also Examples
The function provides plot.lm
style diagnostic plots for
the results of constrained ordination from cca
,
rda
and capscale
. Normally you do not need
these plots, because ordination is descriptive and does not
make assumptions on the distribution of the residuals. However, if
you permute residuals in significance tests (anova.cca
),
you may be interested in inspecting that the residuals really are
exchangeable and independent of fitted values.
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x |
Ordination result from |
kind |
The type of plot: |
residuals |
The kind of residuals and fitted values. The argument
is passed on to |
type |
The type of plot. The argument is passed on to lattice functions. |
formula |
Formula to override the default plot. The formula can
contain items |
... |
Other arguments passed to lattice functions. |
The default plots are similar as in plot.lm
, but they
use Lattice
functions
xyplot
and qqmath
. The
alternatives have default formulae but these can be replaced by the
user. The elements available in formula or in the groups
argument
are Fitted
, Residuals
, Species
and Sites
.
The function return a Lattice
object that can
displayed as plot.
Jari Oksanen
plot.lm
, Lattice
,
xyplot
, qqmath
.
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