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To recreate or rebuild the installed version of an R source package, follow these steps:

1. Install the package development tools by running the following command in R console:

install.packages("devtools")

1. Load the devtools package by running:

library(devtools)

1. Use the build() function to build the package from the source. Specify the path to the source package directory as the argument. For example:

build("path/to/package/source")

1. This will create tar.gz file of the package in the current working directory.

2. Install the built package by running:

install.packages("path/to/package.tar.gz", repos=NULL, type="source")

The package should now be rebuilt and installed in your R environment.