# creating a function that returns the square root of # the number passed to it def square(x): return x*x # using lambda function that returns the square root of # the number passed lambda_square = lambda x: x*x
Now, if the coefficient of x is negative, wecan say that the relationship between the independentand dependentvariables is negative. Here, if the value ofxincreases, the value ofydecreases. Cost Function of Linear Regression Acost functionquantifies the error between the predicted and actual value...
In this tutorial, you'll explore Python's __pycache__ folder. You'll learn about when and why the interpreter creates these folders, and you'll customize their default behavior. Finally, you'll take a look under the hood of the cached .pyc files.
The @ symbol in Python is used to apply a decorator to an existing function or method and extend its functionality.For example, this piece of code . . .def extend_behavior(func): return func @extend_behavior def some_func(): pass
The function call random.randint() is evaluated eagerly, and its value is returned immediately. All standard functions are evaluated eagerly. You’ll learn about generator functions later, which behave differently. Lines 8 to 12: The final example has three lines of code: The literal to create...
(pickle.Unpickler): def find_class(self, module, name): if module in ['config'] and "__" not in name: return getattr(sys.modules[module], name) raise pickle.UnpicklingError("global '%s.%s' is forbidden" % (module, name)) def restricted_loads(s): """Helper function analogous to ...
What is the fastest way to get the reverse complement of a sequence in python? I am posting my skeleton program to test different implementations below with DNA string size 17 as an example. #!/usr/bin/env pythonimport randomimport timeitglobal complementcompleme...
What is a context manager in Python? How do I write a context manager class? How do I use the with statement on a context manager object?The context manager you previously wrote is a class, but what if you want to create a context manager method similar to the open() function instead...
Python language combines different Built-in functions, Built-in methods, and special variables. Let's understand Python's __file__ variable in detail. These
In the above code, the function chooses an action using theε-greedypolicy. Here, it selects a random action with probabilityεor chooses the action that is best known based on the Q-table. This code does not generate an output because it is used only to define the function, but the ...