# plot.correlogram

From ape v2.6-3
by Emmanuel Paradis

##### Plot a Correlogram

These functions plot correlagrams previously computed with
`correlogram.formula`

.

- Keywords
- hplot

##### Usage

```
## S3 method for class 'correlogram':
plot(x, legend = TRUE, test.level = 0.05,
col = c("grey", "red"), type = "b", xlab = "",
ylab = "Moran's I", pch = 21, cex = 2, ...)
## S3 method for class 'correlogramList':
plot(x, lattice = TRUE, legend = TRUE,
test.level = 0.05, col = c("grey", "red"),
xlab = "", ylab = "Moran's I",
type = "b", pch = 21, cex = 2, ...)
```

##### Arguments

- x
- an object of class
`"correlogram"`

or of class`"correlogramList"`

(both produced by`correlogram.formula`

). - legend
- should a legend be added on the plot?
- test.level
- the level used to discriminate the plotting symbols with colours considering the P-values.
- col
- two colours for the plotting symbols: the first one is used
if the P-value is greater than or equal to
`test.level`

, the second one otherwise. - type
- the type of plot to produce (see
`plot`

for possible choices). - xlab
- an optional character string for the label on the x-axis (none by default).
- ylab
- the default label on the y-axis.
- pch
- the type of plotting symbol.
- cex
- the default size for the plotting symbols.
- lattice
- when plotting several correlograms, should they be plotted in trellis-style with lattice (the default), or together on the same plot?
- ...
- other parameters passed to the
`plot`

or`lines`

function.

##### Details

When plotting several correlograms with lattice, some options have no
effect: `legend`

, `type`

, and `pch`

(`pch=19`

is
always used in this situation).

When using `pch`

between 1 and 20 (i.e., non-filled symbols, the
colours specified in `col`

are also used for the lines joining
the points. To keep black lines, it is better to leave `pch`

between 21 and 25.

##### See Also

*Documentation reproduced from package ape, version 2.6-3, License: GPL (>= 2)*

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