What does “call” mean and do? How would you “call” a function in Python? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment … Read more
Hi I have been trying to make a custom loss function in keras for dice_error_coefficient. It has its implementations in tensorboard and I tried using the same function in keras with tensorflow but it keeps returning a NoneType when I used model.train_on_batch or model.fit where as it gives proper values when used in metrics in the model. Can please someone help me out with what should i do? I have tried following libraries like Keras-FCN by ahundt where he has used custom loss functions but none of it seems to work. The target and output in the code are y_true and y_pred respectively as used in the losses.py file in keras.
Suppose you need to make an activation function which is not possible using only pre-defined tensorflow building-blocks, what can you do?
I have a C++/Obj-C background and I am just discovering Python (been writing it for about an hour).
I am writing a script to recursively read the contents of text files in a folder structure.
I am connecting to SSH via terminal (on Mac) and run a Paramiko Python script and for some reason, the two sessions seem to behave differently. The PATH environment variable is different in these cases.
As you mention in the question, dict comprehensions allow you to execute an arbitrary statement for each element:
This may be a simple question, but I can not figure out how to do this. Lets say that I have two variables as follows.
I have been banging my head for a while now on a application I am working on. After many hours trying to debug an issue where the interface locks up and nothing else can take place I figured out it was the dreaded While loop. See this example below and run it. When you start the while loop by clicking on the button you cannot do anything else on the screen. In this is case it is just a simple alert button that needs pressing.
I want something like this:
If I open an image with open("image.jpg"), how can I get the RGB values of a pixel assuming I have the coordinates of the pixel?