5 dv-pred-ipred

This function will split your dataset up in “chunks” according to the columns named in facets. Pass the number of id_per_plot. The return is a list of plots covering all unique values in facets.

In this example, we’ll just plot 9 subjects in a single plot

dd1 <- filter(df, ID <= 9)

Please see the ?dv_pred_ipred help file as there are many arguments which allow you to customize the output

dv_pred_ipred(
  dd1, 
  facets = "ID", 
  id_per_plot = 9
)

$`1`

Some arguments to note

• log_y - log transformed y-axis
• angle - for rotating x-axis tick labels
• xlab - x-axis title
• ylab - y-axis title
• nrow - for arranging facets on a page
• ncol - for arranging facets on a page
• fun - a function which modifies every plot in the output list

There are also a whole series of arguments for configuring the points and lines on the plot for DV, PRED and IPRED.