R 4.0.3中parallel基础包无法安装加载的技术咨询

Hey there, let's break down what's going on with the parallel package in your R 4.0.3 setup:

First, a key clarification #

The parallel package is absolutely a core base package for R—you don't need to install it from CRAN, which is why you're getting errors when trying to do so. Core base packages come pre-installed with every R release, including 4.0.3; they just aren't all attached to your workspace by default.

Why it's not showing up in your attached base packages #

Looking at your sessionInfo() output, the list of attached base packages only includes the ones R loads automatically on startup (like stats, graphics, base). The parallel package is part of the core distribution but requires manual loading, just like other base packages such as tools or compiler.

How to use it right away #

You can start using the parallel package immediately by running this command:

library(parallel)

After running that, if you recheck your sessionInfo(), you'll see parallel listed under attached base packages. To confirm it's working, you can run:

# Check the package version
packageVersion("parallel")
# Verify it's in your attached packages
search()

If you still run into issues #

If library(parallel) throws an error saying the package isn't found, that means your R 4.0.3 installation might be incomplete. In that case, try reinstalling R 4.0.3 from scratch—make sure the installation process finishes without interruptions or error messages.

内容的提问来源于stack exchange，提问作者Louki