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Michel Lang edited this page Mar 21, 2022 · 7 revisions

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Caching of knitr/rmarkdown chunks does not work with mlr3

Answer {knitr} per default uses R's lazy-load database to store the results of individual chunks. The lazy-load database is an internal feature of R, and has issues handling active bindings (https://github.com/r-lib/R6/issues/152). Fortunately, it is possible to disable lazy-loading by setting the chunk option `cache.lazy` to `FALSE`: 
knitr::opts_chunk$set(cache = TRUE, cache.lazy = FALSE)

How to keep all mlr3 packages up-to-date?

Answer Either run R's `update.packages()` to update all installed packages, or run 
devtools::update_packages("mlr3verse", dependencies = TRUE)

to update only packages from the mlr3verse. Note that this also updates recursive dependencies not listed as a direct import.

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