Plot a signed measure or vector-valued measure.

```
# S3 method for msr
plot(x, …,
add = FALSE,
how = c("image", "contour", "imagecontour"),
main = NULL,
do.plot = TRUE,
multiplot = TRUE,
massthresh = 0,
equal.markscale = FALSE,
equal.ribbon = FALSE)
```

x

The signed or vector measure to be plotted.
An object of class `"msr"`

(see `msr`

).

…

Extra arguments passed to `Smooth.ppp`

to control the interpolation of the
continuous density component of `x`

,
or passed to `plot.im`

or `plot.ppp`

to control the appearance of the plot.

add

Logical flag; if `TRUE`

, the graphics are added to the existing
plot. If `FALSE`

(the default) a new plot is initialised.

how

String indicating how to display the continuous density component.

main

String. Main title for the plot.

do.plot

Logical value determining whether to actually perform the plotting.

multiplot

Logical value indicating whether it is permissible to display a plot with multiple panels (representing different components of a vector-valued measure, or different types of points in a multitype measure.)

massthresh

Threshold for plotting atoms.
A single numeric value or `NULL`

.
If `massthresh=0`

(the default) then only atoms with
nonzero mass will be plotted.
If `massthresh > 0`

then only atoms whose absolute mass
exceeds `massthresh`

will be plotted.
If `massthresh=NULL`

, then all atoms of the measure will be plotted.

equal.markscale

Logical value indicating whether different panels should use the same symbol map (to represent the masses of atoms of the measure).

equal.ribbon

Logical value indicating whether different panels should use the same colour map (to represent the density values in the diffuse component of the measure).

(Invisible) colour map (object of class `"colourmap"`

) for the
colour image.

This is the `plot`

method for the class `"msr"`

.

The continuous density component of `x`

is interpolated
from the existing data by `Smooth.ppp`

,
and then displayed as a colour image by `plot.im`

.

The discrete atomic component of `x`

is then superimposed on this
image by plotting the atoms as circles (for positive mass)
or squares (for negative mass) by `plot.ppp`

.
By default, atoms with zero mass are not plotted at all.

To smooth both the discrete and continuous components,
use `Smooth.msr`

.

Use the argument `clipwin`

to restrict the plot to a subset
of the full data.

To remove atoms with tiny masses, use the argument `massthresh`

.

# NOT RUN { X <- rpoispp(function(x,y) { exp(3+3*x) }) fit <- ppm(X, ~x+y) rp <- residuals(fit, type="pearson") rs <- residuals(fit, type="score") plot(rp) plot(rs) plot(rs, how="contour") # }