This article provides an example of a TIBCO Enterprise Runtime for R (TERR) command that can be used to test whether a particular TERR instance can see the open-source R community's CRAN repository of user-contributed R packages.

Example of a TERR command to test whether a TERR instance can see the CRAN repository

The following TERR command can be issued in a TERR Console session or built into a Spotfire data function's TERR script, to test whether the TERR instance can see the open-source R community's CRAN repository for downloading and installing user-contributed R packages:

      "data.table" %in% rownames( available.packages() )

If this command returns either TRUE or FALSE, the TERR instance can see the CRAN repository.

The following is an example of its use in a TERR Console session:

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TIBCO Enterprise Runtime for R version 4.3.0 for Microsoft Windows 64-bit

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>
>
> "data.table" %in% rownames( available.packages() )
[1] TRUE
>
>
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