[R] Improving data processing efficiency

[hadley wickham]

>>  > install.packages("profr")
>> Warning message:
>> package 'profr' is not available
>
> I selected a different mirror in place of the Iowa one and it
> worked. Odd, I just assumed all the same packages are available
> on all mirrors.

The Iowa mirror is rather out of date as the guy who was looking after
it passed away.

Hadley


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