Hi,
I would like to perform an horizontal/vertical matrix concatenation between two matrices. Is it possible with Eigen or I have to write my own concatenation function ?

I searched on eigen documentation but unfortunatly i didn't find any method that do this operation.

Thanks,
Angelo.

you can use the comma initializer syntax:

C.resize(A.rows(),A.cols()+B.cols());
C << A,B;

or:

C.resize(A.rows()+B.rows(),A.cols());
C << A,B;

It works ! Thanks a lot.