You can transfer data and results from R data frames or matrices to a SAS data set or a SAS/IML matrix. Table 12.2 summarizes the frequently used methods that copy from an R source to a SAS destination.
Table 12.2: Transferring from an R Source to a SAS Destination
|
Subroutine |
R Source |
SAS Destination |
|---|---|---|
|
ImportDataSetFromR |
R expression |
SAS data set |
|
ImportMatrixFromR |
R expression |
SAS/IML matrix |
The next section includes an example of calling an R analysis. Some of the results from the analysis are then transferred into SAS/IML matrices.
The result of an R analysis can be a complicated structure. In order to transfer an R object via the previously mentioned
methods and modules, the object must be coercible to a data frame. (The R object m can be coerced to a data frame provided that the function as.data.frame(m) succeeds.) There are many data structures that cannot be coerced into data frames. As the example in the next section shows,
you can use R statements to extract and transfer simpler objects.