ToolPythonBeginner Classification with scikit-learn: telling two populations apart grid = np.column_stack([x1g.ravel(), x2g.ravel()])
ToolPythonBeginner Matplotlib from the ground up: a two-panel figure for one journal column xy = ax.transData.transform(np.column_stack([lam, counts]))
ToolPythonBeginner Minimization with scipy.optimize.minimize: the shape of a seven-atom cluster pos = pos @ np.column_stack([x, np.cross(z, x), z])