ing any missing values in the outcome or covariates). The column that is created by <code><a href="../reference/cv_gee.html">cv_gee()</a></code> and contains the values of the scoring rules is called <code>.score</code>. In the second line we make a copy of this column with the name <code>non_linear_I</code> that will be used in the plotting next. The third line calculates the scoring rules for the second GEE. In this one we have asked for the dataset, but rather only for the values of the scoring rules tha