在R中模拟软件包的安装

Question

Is there a way from within R to simulate the installation of a package, without actually installing it?

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If you know Debian or Ubuntu, what I have in mind is something like the -s parameter of apt-get there.

Answer 1

Best way to do something like this on Linux is to create ramdisk. You'll simulate whole installation, it is very fast, and it will be gone as soon as you reboot/unmount ramdisk. Along the lines

> sudo mount -t tmpfs -o size=512m tmpfs /mnt/ramdisk

or add line to /etc/fstab

> tmpfs       /mnt/ramdisk tmpfs   nodev,nosuid,noexec,nodiratime,size=512M   0 0

and then as suggested

> R CMD INSTALL --library=/mnt/ramdisk pkg_name

or other installation tests as desired