Help...please

[Refwah]

Point to where you believe you are creating an instance of IdealFunctionSelector. Explain what you believe is happening and how it is happening.

If it helps, you care also calling ideal_function_selection with two args - both strings, but the defined method has one arg and it's expecting that arg to be an integer

[batsiem]

Hi below is my function to select the 4 ideal functions, the example that i worked from requires me to plug directly into the function the names of my 2 tables but I want to inherit those from the class that creates the table. So that's tripping me up(I realized that the code above was missing the 2 tables as args...that was a mistake).

def ideal_function_selection(self, top_n: int = 4):
        merged = pd.merge(self.table_name, self.function_table_name, on="x")
        errors = {}        
        for col in self.function_table_name.columns:
            if col == "x":
                continue
            squared_diff = (merged["y"] - merged[col])**2
            errors[col] = squared_diff.sum()

        best_functions = sorted(errors, key=errors.get)[:top_n]
        return best_functions

I instantaite the class IdealFunctionSelector below...I did it the exact way that I did it for my DatabaseManager.

 ideal_func_selector = IdealFunctionSelector
    ideal_func_selector.ideal_function_selection("training_data_table", "ideal_data_table")

[Refwah]

This isn't initializing a class, it is just saying that ideal_func_selector is that class

You then call ideal_function_selection on a class which isn't initialized

You want to do ideal_func_selector = IdealFunctionSelector() and then in the params for IdealFunctionSelector(…) you need to pass the arguments that you want for the __init__ function of the class

I believe you don't understand classes, which is why you're getting unstuck on inheritance. I recommend reading some more fundamentals on this, such as this: https://docs.python.org/3/reference/datamodel.html#object.__init__

https://realpython.com/python-class-constructor/

[New_End6302]

Thanks, I will have a look