a container used by RLink to represent pieces of R code corresponding to R objects not directly supported by RLink.
- 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 Mathematica.
- RLink does not guarantee that all objects imported into a Mathematica session and represented by RCode[code] will result in identical objects created in R workspace if exported back into R (from Mathematica). Therefore, generally 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 will be correctly exported from Mathematica to R.
- Expressions with an head transform trivially (are left unchanged) by the functions ToRForm and FromRForm.