python - Numpy para qué sirve el -1 en reshape () - Stack …
Nov 29, 2020 · Lo que hace reshape(-1) es mantener esa dimensión de tamaño indefinido y hacer que se ajuste al resto de las dimensiones, por eso numpy solo te lo permite hacer una …
python - Reshape an array in NumPy - Stack Overflow
Jan 23, 2013 · Reshape an array in NumPy Asked 12 years, 10 months ago Modified 6 years, 5 months ago Viewed 146k times
python - How does numpy reshape works? - Stack Overflow
Apr 2, 2015 · 9 When you use b = a.reshape((5,4,5)) you just create a different view on the same data used by the array a. (ie changes to the elements of a will appear in b). reshape() does not …
python - What is the difference between resize and reshape when …
Jan 7, 2017 · reshape() in general don't modify data themselves, only meta info about them, the .reshape() method (of ndarray) returns the reshaped array, keeping the original array …
python - What is x_train.reshape () and What it Does? - Stack …
May 2, 2020 · 0 reshape() function is generally used to change the shape of an array without changing the data. x_train.reshape([-1,num_features]) in this command x_train will be …
python - From ND to 1D arrays - Stack Overflow
Conclusion ravel and reshape(-1) 's execution time was consistent and independent from ndarray size. However, ravel is tad faster, but reshape provides flexibility in reshaping size. (maybe …
How can I reshape a 2D array into 1D in python? - Stack Overflow
Oct 29, 2022 · 1 In Python, the extend() method can be used to flatten a nested list into a 1D list efficiently. This method appends the elements of each inner list to an outer list. Below is an …
How to flatten only some dimensions of a numpy array
Sep 12, 2013 · You can specify the dimension with a -1: From numpy.reshape One shape dimension can be -1. In this case, the value is inferred from the length of the array and …
python - How does numpy.reshape () with order = 'F' work
Aug 31, 2017 · From np.reshape docs You can think of reshaping as first raveling the array (using the given index order), then inserting the elements from the raveled array into the new array …
python - How can I make a two-dimensional NumPy array a three ...
Apr 27, 2024 · I have a two-dimensional array with shape (x, y) which I want to convert to a three-dimensional array with shape (x, y, 1). Is there a nice Pythonic way to do this?