Problem with installing packages

[Pawn371]

Hi.
I went back to using Rstudio after several years, so I have a problem with installing packages.
Let me explain: I install packages I need for work, but if I quit the Rstudio, when I reopen it packages previously installed they do not appear, so I am forced to reinstall whenever all packages I need.
I use last version of Rstudio on Windows 10.
Thanks for every suggestion.

[andresrcs]

This sounds odd. Just to be sure, you mean installing with install.packages() and not loading the packages with library() right? Because the latter is normal behavior.

[Pawn371]

I use both of these commands.
Is it correct?

[andresrcs]

You only need to install packages once with install.packages() but you need to load them with library() on every new R session where you want to use them.

[Pawn371]

I did not use RStudio from several years, I forgot this particular...
Thanks a lot.

[andresrcs]

Just to clarify, this is not related to RStudio per se but to the R programming language in general.

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