here cost_history is supposed to be a float array, idk what the error means, help

CodePudding user response：

The error states that iters is not an int. This seems to be because you're passing the arguments in a different order than expected. Notice the function definition:

def bgd(X, y, w, iters, lamb, alpha):

And now, checkout the variable names you provide to call the function:

bgd(X, y, w, alpha, iters, lamb)

You probably want to change your function call to:

bgd(X, y, w, iters, lamb, alpha)

CodePudding user response：

You have mixed up alpha and iters. Your definition and calling mixed up. so np.zeros is getting alpha which is float instead of iters.