import numpy as np
import holoviews as hv

hv.extension('matplotlib')

gradient = 2
y_intercept = 15

# create random data
xpts = np.arange(0, 20)
ypts = gradient * xpts + y_intercept + np.random.normal(0, 4, 20)

scatter = hv.Scatter((xpts, ypts))
slope = hv.Slope(gradient, y_intercept)

scatter * slope.opts(color='red', linewidth=6)

normal = hv.Scatter(np.random.randn(20, 2))

normal * hv.Slope.from_scatter(normal)