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Out of Date Packages

R packages are constantly updated. Updates contain new features and bug fixes. The old.packages() function returns a data frame, where each row indicates a newer version is available.

指示

100 XP

Create a data frame of the packages where a newer version is available, and assign it to the object old.
How many packages need to be updated? Store this value to no_of_old_pkgs.

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指示

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