Integration test of visualizer with coef param
concrete = self.load_data("concrete")
feats = ["cement","slag","ash","water","splast","coarse","fine","age"]
// Create X and y datasets as numpy arrays
X = concrete[feats].copy()
After Change
// Load the test dataset
dataset = load_concrete(return_dataset=True)
X, y = dataset.to_numpy()
features = dataset.meta["features"]
fig = plt.figure()
ax = fig.add_subplot()