This function plots the residuals for the specified subset of the 
  observed variables from an mkinfit object. A combined plot of the fitted
  model and the residuals can be obtained using plot.mkinfit
  using the argument show_residuals = TRUE.
    
    mkinresplot(object,
    obs_vars = names(object$mkinmod$map),
    xlim = c(0, 1.1 * max(object$data$time)),
    xlab = "Time", ylab = "Residual",
    maxabs = "auto", legend = TRUE, lpos = "topright", ...)
    
     Arguments
    
      - object
- 
    A fit represented in an mkinfitobject.
- 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. Defaults to "Time [days]".
- ylab
- 
    Label for the y axis. Defaults to "Residual [% of applied radioactivity]".
- maxabs
- 
    Maximum absolute value of the residuals. This is used for the scaling of
    the y axis and defaults to "auto".
- legend
- 
    Should a legend be plotted? Defaults to "TRUE".
- lpos
-  
    Where should the legend be placed? Default is "topright". Will be passed on to
		legend.
- …
- 
   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.
    
    Examples
    #> Successfully compiled differential equation model from auto-generated C code.
