title: R MLR package - Saving performance for each parameter
body: <p>I am using the <code>mlr</code> package in R to run the KNN algorithm. I am using <code>tuneParams</code> to search for the optimal <code>k</code>. When I run <code>tuneParams</code> the output shows the performance for each value of <code>k</code>. How can I save the performance for each <code>k</code>? The <code>TuneResult</code> object only has the optimal performance. I would like to use this to create a graph with the performance as a function of <code>k</code>. </p>