update urls in c12 ex

geocompx · Oct 30, 2023 · 0aaf0a6 · 0aaf0a6
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diff --git a/_12-ex.Rmd b/_12-ex.Rmd
@@ -119,7 +119,7 @@ E4. Compute a 100-repeated 5-fold non-spatial cross-validation and spatial CV ba
 
 Hint: You need to specify a non-spatial resampling strategy.
 
-Another hint: You might want to solve Excercises 4 to 6 in one go with the help of `mlr3::benchmark()` and `mlr3::benchmark_grid()` (for more information, please refer to https://mlr3book.mlr-org.com/performance.html#benchmarking).
+Another hint: You might want to solve Excercises 4 to 6 in one go with the help of `mlr3::benchmark()` and `mlr3::benchmark_grid()` (for more information, please refer to https://mlr3book.mlr-org.com/chapters/chapter10/advanced_technical_aspects_of_mlr3.html#sec-fallback).
 When doing so, keep in mind that the computation can take very long, probably several days.
 This, of course, depends on your system.
 Computation time will be shorter the more RAM and cores you have at your disposal.