RLink`

RCode

RCode[code]

a container used by RLink to represent pieces of R code corresponding to R objects not directly supported by RLink.

Details and Options

The code parameter is a string of R code which, when parsed and evaluated, would normally (but not always) produce an object in R workspace equivalent to the one represented by this code. This string is obtained by applying an R deparse function to the original R object being imported in the Wolfram Language.
RLink does not guarantee that all objects imported into a Wolfram System session and represented by RCode[code] will result in identical objects created in R workspace if exported back into R (from the Wolfram Language). Therefore, generally RCode provides a form of representation for such objects, but not a form of equivalence.
RLink does not guarantee that larger objects containing elements represented by RCode will be correctly exported from the Wolfram Language to R.
Expressions with an RCode head transform trivially (are left unchanged) by the functions ToRForm and FromRForm.

This loads RLink:

This creates a simple linear model:

The result is a rather complex R object:

It contains certain elements that are not directly supported by RLink, particularly formulas and unevaluated R code:

Some of these elements are parts of the object's attributes rather than the object's data. These are the attributes of the linear model R object:

Inspecting them, you can find such attributes:

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