Accessing Data In Cached Knitr Chunks

less than 1 minute read

Sometimes you’ve run your knitr document, and you’d just like to examine some of the cached data. It’s not obvious how to do that, and this probably isn’t really what knitr was intended for but it can be done by using the lazyLoad() function. If you look in the knitr ‘cache’ directory there should be a load of .rdb, .rdx and .RData files that store all of the cached computation. A call along the lines of

lazyLoad("name-of-my-cached-rdx-file")

does the trick. Note the lack of a file extension.

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