
python - What does .shape [] do in "for i in range (Y.shape [0 ...
The shape attribute for numpy arrays returns the dimensions of the array. If Y has n rows and m columns, then Y.shape is (n,m). So Y.shape[0] is n.
arrays - what does numpy ndarray shape do? - Stack Overflow
2017年11月30日 · 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 np.ndim(). …
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 and 2D array …
python - x.shape [0] vs x [0].shape in NumPy - Stack Overflow
2018年1月7日 · On the other hand, x.shape is a 2-tuple which represents the shape of x, which in this case is (10, 1024). x.shape[0] gives the first element in that tuple, which is 10. Here's a demo with …
What does shape[0] and shape[1] do in python? - Stack Overflow
2018年7月21日 · In python shape[0] returns the dimension but in this code it is returning total number of set. Please can someone tell me work of shape[0] and shape[1]? Code: m_train = …
numpy: "size" vs. "shape" in function arguments? - Stack Overflow
2018年10月22日 · Shape (in the numpy context) seems to me the better option for an argument name. The actual relation between the two is size = np.prod(shape) so the distinction should indeed be a bit …
shape = 19, shape = 20 and shape=16 in R graphics [duplicate]
2020年1月23日 · In R graphics and ggplot2 we can specify the shape of the points. I am wondering what is the main difference between shape = 19, shape = 20 and shape = 16? Is it the size? This post …
python - PyTorch model input shape - Stack Overflow
2021年3月5日 · input_shape = first_parameter.size () this is for the weight size, if you save the model and open it in neuron, you would see that the weight size is the same as the input shape.
python - shape vs len for numpy array - Stack Overflow
2016年5月24日 · Still, performance-wise, the difference should be negligible except for a giant giant 2D dataframe. So in line with the previous answers, df.shape is good if you need both dimensions, for a …
How to merge color, line style and shape legends in ggplot
2016年5月10日 · It is often appropriate to have redundant shape/color group definitions. In many scientific publications, color is the most visually effective way to distinguish groups, but you also …