Plotting Google closing price time series data

Split the data for the last $5$ days into the Test set and the rest into the Training set

Predict using $3$ baseline models $($past average, recent value, Drift method$)$ and compare the MSE of each model

Plotting the predicted values

Make a short$-$term prediction $($predict the next time step$)$ for the Test set and calculate the MSE

Plotting the predicted values

Solving college student undergraduate level problems with Jupyter Notebook Python