Hi, I would like to write something like:
In [25]: iterable=((i, i**2) for i in range(10)) In [26]: a=np.fromiter(iterable, int32) --------------------------------------------------------------------------- ValueError Traceback (most recent call last) <ipython-input-26-5bcc2e94dbca> in <module>() ----> 1 a=np.fromiter(iterable, int32) ValueError: setting an array element with a sequence. Is there an efficient way to do this? Creating two 1-dimensional arrays first is costly as one has to iterate twice over the data. So the only way I see is creating an empty [10,2] array and filling it row by row. This is memory-efficient but slow. List comprehension is vice versa. If there is no solution, wouldn't it be possible to rewrite fromiter so as to accept sequences? Leo _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
