combinations_1d¶ combinations_1d(x: ndarray, y: ndarray) → ndarray[source]¶ Return the unique pairs of the 2D array made by concatenating x and y. Parameters: xarray, shape=(u)A 1D array of values yarray, shape=(v)A 1D array of values Returns: array, shape=(w, 2)The unique pairs in the concatenation of x and y.