# plot.igraph

From igraph v1.0.0
by Gabor Csardi

##### Plotting of graphs

`plot.igraph`

is able to plot graphs to any R device. It is the
non-interactive companion of the `tkplot`

function.

- Keywords
- graphs

##### Usage

```
## S3 method for class 'igraph':
plot(x, axes = FALSE, add = FALSE, xlim = c(-1, 1),
ylim = c(-1, 1), mark.groups = list(), mark.shape = 1/2,
mark.col = rainbow(length(mark.groups), alpha = 0.3),
mark.border = rainbow(length(mark.groups), alpha = 1), mark.expand = 15,
...)
```

##### Arguments

- x
- The graph to plot.
- axes
- Logical, whether to plot axes, defaults to FALSE.
- add
- Logical scalar, whether to add the plot to the current device, or delete the device's current contents first.
- xlim
- The limits for the horizontal axis, it is unlikely that you want to modify this.
- ylim
- The limits for the vertical axis, it is unlikely that you want to modify this.
- mark.groups
- A list of vertex id vectors. It is interpreted as a set
of vertex groups. Each vertex group is highlighted, by plotting a colored
smoothed polygon around and
under it. See the arguments below to control the look of the polygons. - mark.shape
- A numeric scalar or vector. Controls the smoothness of the
vertex group marking polygons. This is basically the
shape parameter of the`xspline`

function, its possible values are betw - mark.col
- A scalar or vector giving the colors of marking the
polygons, in any format accepted by
`xspline`

; e.g. numeric color ids, symbolic color names, or colors in RGB. - mark.border
- A scalar or vector giving the colors of the borders of
the vertex group marking polygons. If it is
`NA`

, then no border is drawn. - mark.expand
- A numeric scalar or vector, the size of the border around the marked vertex groups. It is in the same units as the vertex sizes. If a vector is given, then different values are used for the different vertex groups.
- ...
- Additional plotting parameters. See igraph.plotting for the complete list.

##### Details

One convenient way to plot graphs is to plot with `tkplot`

first, handtune the placement of the vertices, query the coordinates by the
`tk_coords`

function and use them with `plot`

to
plot the graph to any R device.

##### Value

- Returns
`NULL`

, invisibly.

##### See Also

`layout`

for different layouts,
`igraph.plotting`

for the detailed description of the plotting
parameters and `tkplot`

and `rglplot`

for other
graph plotting functions.

##### Examples

```
g <- ring(10)
plot(g, layout=layout_with_kk, vertex.color="green")
```

*Documentation reproduced from package igraph, version 1.0.0, License: GPL (>= 2)*

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