Question: This failed: Apparently, constants can’t hold arrays. What is the best way to get around this? This seems like unnecessary effort. Best Answer: Since PHP 5.6, you can declare an array constant with const: The short syntax works too, ...
Question: 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 want to construct a DataFrame from this: This generates an error: ValueError: If ...
Question: I have the following features : after transforming it with: I have scaled_features: Now I wish to get a sample from the self.scaler so I send my new feature example t: I get what am I doing wrong? Why ...
Question: What types of expressions are allowed for declaring a scalar variable’s size in a PL/SQL package? Here is a db<>fiddle showing size expressions other than numeric literals where some produce errors and others don’t. Below is a snippet. but ...
Question: working on an economic optimization problem with pyomo, I would like to add a constraint to prevent the product of the commodity quantity and its price to go below zero (<0), avoiding a negative revenue. It appears that all ...
Question: I’m trying to multiply a matrix by scalar, but I’m unable to get my output right. The output I receive is: My desired output would be: How do I get there? Edit: Your advice worked, thanks all! Answer: You ...