# Function to plot squared residuals and the error model for an mkin object

Source:`R/mkinerrplot.R`

`mkinerrplot.Rd`

This function plots the squared residuals for the specified subset of the
observed variables from an mkinfit object. In addition, one or more dashed
line(s) show the fitted error model. A combined plot of the fitted model
and this error model plot can be obtained with `plot.mkinfit`

using the argument `show_errplot = TRUE`

.

## Arguments

- object
A fit represented in an

`mkinfit`

object.- obs_vars
A character vector of names of the observed variables for which residuals should be plotted. Defaults to all observed variables in the model

- xlim
plot range in x direction.

- xlab
Label for the x axis.

- ylab
Label for the y axis.

- maxy
Maximum value of the residuals. This is used for the scaling of the y axis and defaults to "auto".

- legend
Should a legend be plotted?

- lpos
Where should the legend be placed? Default is "topright". Will be passed on to

`legend`

.- col_obs
Colors for the observed variables.

- pch_obs
Symbols to be used for the observed variables.

- frame
Should a frame be drawn around the plots?

- ...
further arguments passed to

`plot`

.

## Value

Nothing is returned by this function, as it is called for its side effect, namely to produce a plot.

## See also

`mkinplot`

, for a way to plot the data and the fitted
lines of the mkinfit object.