Not intended to be called directly by the user

Not intended to be called directly by the user

.plot_mixed(
  x,
  i = 1:ncol(x$mmkin),
  degparms_optim,
  degparms_pop,
  residuals,
  obs_vars = names(x$mkinmod$map),
  standardized = TRUE,
  xlab = "Time",
  xlim = range(x$data$time),
  resplot = c("predicted", "time"),
  ymax = "auto",
  maxabs = "auto",
  ncol.legend = ifelse(length(i) <= 3, length(i) + 1, ifelse(length(i) <= 8, 3, 4)),
  nrow.legend = ceiling((length(i) + 1)/ncol.legend),
  rel.height.legend = 0.03 + 0.08 * nrow.legend,
  rel.height.bottom = 1.1,
  pch_ds = 1:length(i),
  col_ds = pch_ds + 1,
  lty_ds = col_ds,
  frame = TRUE,
  ...
)