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I wanted to know why, when you install R for Windows on a x64 machine, it lets you choose between installing 64-bit,32-bit, or both.

I don't understand why would you want to install 32-bit version of R. Maybe it's for backwards compatibility, I'm curious.

Thank you!

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  • 1
    Say you have a huge collection of 32-bit R package binaries, or even package source code that hasn't yet been ported to 64-bits. Oct 2, 2015 at 8:30
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    Some basic answers here Some reasons are dependent on what specific software that is to be installed.
    – Moab
    Oct 2, 2015 at 13:57
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    More answers here
    – Moab
    Oct 2, 2015 at 14:00

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