Hi all,
We currently faced a problem about how to pass a matrix with different
types to a COM function call thru the RDCOMClient asCOMArray().
As we all know that matrix in R can't hold of elements with different
types. So we managed to create a matrix of lists:
rates <- matrix(
list("1y","2y","3y","4y","5y","7y","10y"
,0.23,0.25,0.25,0.19,0.23,0.25,0.28
)
, nrow=7, ncol=2, byrow=FALSE
)
This preserves the type info, but each element in the matrix rates is
type of list.
Then we can add a *case* statement in the function R_create2DArray in
file converters.cpp:
VARIANT v;
...
case VECSXP:
// Only get the first element.
VariantInit(&v);
R_convertRObjectToDCOM(VECTOR_ELT(obj, ctr), &v);
el = (void*)&v;
break;
May I ask if there is another way to work this around?
If not, may I request to add this new feature to RDCOMClient?
Thanks,
Milo
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