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Thanks you very much for the comments. Those are some good ways to
get he data back and forth. In fact, I think we can regard those
mechanical issues as taken care of. I can see a number of ways to
do that.<br>
<br>
However, once I get the columnar data (what was data.tables in R)
into C# and stored in memory, what representation of it should I use
in C# that would be most like data.table? And how would I
manipulate it then and there in C#, but in data.table like ways,
without involving R at that point. Does anyone know what .Net way
would be most like data.table? Would it be LINQ Objects, for
example, or some in-memory data package? I do not want to do SQL
etc. which is so painful compared to data.table. I know this is not
a data.table question as such, but people here are the only people
who can understand it because they know what data.table is. I want
to be able to add one column to another etc. as I can do in
data.table. (Then maybe eventually send it back to R as a
data.table which is just mechanics again).<br>
<br>
If I am too far off topic let me know and I apologize.<br>
<br>
Thanks,<br>
<br>
Don<br>
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