[R] Where is CRAN mirror address stored?

[Vladimir Eremeev]

When I update.packages(), R shows the dialog window, listing CRAN mirrors and
asks to choose the CRAN mirror to use in this session. Then, R uses this
address and never asks again until quit.

Is there any way to make R ask for the CRAN mirror again, except restarting
it?

I am just trying to save typing, because sometimes my internet connection
with CRAN becomes too slow, and mirrors disappear.


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