Indirect references in SPLUS

[Santosh <santosh2005@gmail.com>]

Dear SPlus Users,

Is there a way to work with indirect references in SPlus?

For example,

DataColumn <-  "Resist"
MatrixColumn <- "ExpnsnCoeff"'
ScalarColumn <- "Voltage"

As I don't know the syntax, I would like illustrate using the examples given below.

In conventional SPLUS notation, if "df" is a generic dataframe that consists of vectors
"Resist", "ExpnsnCoeff", "Voltage", 

"df$Resist", "df$ExpnsnCoeff", "df$Voltage" notation may be used to for data handling in respective vectors of the data frame.

Instead of the above notation, I would like to use an indirect reference like:

Assuming that the syntax to provide indirect references is curly braces, e.g. ${DataColumn},
 
"df${DataColumn}" indirectly accesses the vector "df$Resist";
 similarly "df${MatrixColumn}" calls  "df$ExpnsnCoeff" vector indirectly, and so on..


Hope the above question is clear; please do feel free to ask if you have any additional questions.

Regards,
Santosh