hstack()

hstack ( tup )

Stack arrays in sequence horizontally (column wise). This is equivalent to concatenation along the second axis, except for 1-D arrays where it concatenates along the first axis.

This method has the same behavior as numpy.hstack, except that it always returns a gurobipy matrix-friendly API object of the appropriate type.

Arguments:

tup: A sequence of matrix-friendly API objects

Return value:

Returns a matrix-friendly API object. Note that the return type depends on the types of the input objects.

Example usage:

X = model.addMVar((k, n))
Y = model.addMVar((k, m))
XY = gp.hstack((X, Y))     # (k, n+m) MVar