title: Inserting a row at a specific location in a 2d array in numpy?
body: <p>I have a 2d array in numpy where I want to insert a new row. Following question <a href="https://stackoverflow.com/questions/3881453/numpy-add-row-to-array">Numpy - add row to array</a> can help. We can use <code>numpy.vstack</code>, but it stacks at the start or at the end. Can anyone please help in this regard.</p>