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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