At first, we import the necessary modules and load the dataset from the topic. The data will be stored in u, v, w, and y.
from sklearn.model_selection import train_test_split
from sklearn.datasets import load_wine
data = load_wine(as_frame=True)["frame"]
u, v = data.iloc[:, :5], data.iloc[:, 5:9]
w, y = data.iloc[:, 9:-1], data["target"]
According to the documentation, train_test_split() returns a Python list. What is the length of the list, which will be returned by the following line of code?
train_test_split(u, v, w, y, train_size=0.8, shuffle=True)
Provide a number as an answer.