Is there a way to filter out a frequency? Question: np.argmax function returns the highest frequency value and I want to take that value out and then see what the second highest value is. import wave import struct import matplotlib.pyplot as plt import numpy as np There is some code here but that just defines …
Argmax in a Keras multiclassifier ANN Question: I am trying to code a 5 class classifier ANN, and this code return this error: classifier = Sequential() classifier.add(Dense(units=10, input_dim=14, kernel_initializer=’uniform’, activation=’relu’)) classifier.add(Dense(units=6, kernel_initializer=’uniform’, activation=’relu’)) classifier.add(Dense(units=5, kernel_initializer=’uniform’, activation=’softmax’)) classifier.compile(optimizer=’adam’, loss=’categorical_crossentropy’, metrics=[‘accuracy’]) RD_Model = classifier.fit(X_train,y_train, batch_size=10 , epochs=10, verbose=1) File "c:Program FilesPython310libsite-packageskerasbackend.py", line 5119, in categorical_crossentropy target.shape.assert_is_compatible_with(output.shape) ValueError: …
Python most efficient way to find index of maximum in partially changed array Question: I have a complex-valued array of about 750000 elements for which I repeatedly (say 10^6 or more times) update 1000 (or less) different elements. In the absolute-squared array I then need to find the index of the maximum. This is part …
Why does dim=1 return row indices in torch.argmax? Question: I am working on argmax function of PyTorch which is defined as: torch.argmax(input, dim=None, keepdim=False) Consider an example a = torch.randn(4, 4) print(a) print(torch.argmax(a, dim=1)) Here when I use dim=1 instead of searching column vectors, the function searches for row vectors as shown below. print(a) : …
numpy: what is the logic of the argmin() and argmax() functions? Question: I can not understand the output of argmax and argmin when use with the axis parameter. For example: >>> a = np.array([[1,2,4,7], [9,88,6,45], [9,76,3,4]]) >>> a array([[ 1, 2, 4, 7], [ 9, 88, 6, 45], [ 9, 76, 3, 4]]) >>> a.shape …
Find row where values for column is maximal in a pandas DataFrame Question: How can I find the row for which the value of a specific column is maximal? df.max() will give me the maximal value for each column, I don’t know how to get the corresponding row. Asked By: Miki Tebeka || Source Answers: …
