How to get the best parameters in a linear regression for best fitted line

Course Q&A Machine Learning Specialization Supervised ML: Regression and Classification
1

Dear All,
Glad to be learning ML and when i tried what was been taught on a large dataset, i visualized my predicted and actual and i’m getting this for a linear regression.
Seems choosing of my parameters is bad. Any contribution to this?
Thanks

courser prob
courser prob958×540 39.1 KB

2

You need to plot your data without the connecting lines.

Note that you don’t “choose the parameters”. The parameters (the weights and bias) are learned through training.

3

You are plotting the data w.rt x_train, but your predicted values have been calculated with x, inside the compute_model function