What does .shape [] do in "for i in range (Y.shape [0])"?
shape is a tuple that gives you an indication of the number of dimensions in the array. So in your case, since the index value of Y.shape[0] is 0, your are working along the first dimension of …
Difference between numpy.array shape (R, 1) and (R,)
Shape n, expresses the shape of a 1D array with n items, and n, 1 the shape of a n-row x 1-column array. (R,) and (R,1) just add (useless) parentheses but still express respectively 1D …
arrays - what does numpy ndarray shape do? - Stack Overflow
Nov 30, 2017 · yourarray.shape or np.shape() or np.ma.shape() returns the shape of your ndarray as a tuple; And you can get the (number of) dimensions of your array using yourarray.ndim or …
python - What does -1 mean in numpy reshape? - Stack Overflow
Sep 9, 2013 · When reshaping an array, the new shape must contain the same number of elements as the old shape, meaning the products of the two shapes' dimensions must be …
python - x.shape [0] vs x [0].shape in NumPy - Stack Overflow
Jan 7, 2018 · x[0].shape will give the Length of 1st row of an array. x.shape[0] will give the number of rows in an array. In your case it will give output 10. If you will type x.shape[1], it will …
What does shape[0] and shape[1] do in python? - Stack Overflow
Jul 21, 2018 · In this case your training set will be of the shape (n,x,y). The fourth dimension in your data is the number of channels (3, or RGB in this case). In your dataset the height and …
Combine legends for color and shape into a single legend
The main problem was that you were using two different vectors to describe your groups resulting in two legends. using your group2 gives each group their own shape/colour. then you choose …
PyTorch: How to get the shape of a Tensor as a list of int
Oct 19, 2017 · P.S.: Note that tensor.shape is an alias to tensor.size(), though tensor.shape is an attribute of the tensor in question whereas tensor.size() is a function. Share Improve this answer
OpenCV NoneType object has no attribute shape - Stack Overflow
Sep 14, 2015 · The Python AttributeError: 'NoneType' object has no attribute 'shape' occurs after passing an incorrect path to cv2.imread() because the path of image/video file is wrong or the …
ValueError: shape mismatch: objects cannot be broadcast to a …
In the first case (a), numpy couldn't coerce both arrays to have the same shape. However, in the second case (b), since one is an 1D array (shape=(3,)) and the other is a 2D array …