import numpy as np
import holoviews as hv

from holoviews import dim
hv.extension('matplotlib')

hv.Rectangles([(0, 0, 1, 1), (2, 3, 4, 6), (0.5, 2, 1.5, 4), (2, 1, 3.5, 2.5)])

hv.Rectangles([(0, 0, 1, 1, 1), (2, 3, 4, 6, 2), (0.5, 2, 1.5, 4, 3), (2, 1, 3.5, 2.5, 4)], vdims='value').opts(color='value')

xs = np.arange(100)
ys = np.random.randn(101).cumsum()

O = ys[1:]
C = ys[:-1]
H = np.max([O, C], axis=0) + np.random.rand(100)
L = np.min([O, C], axis=0) - np.random.rand(100)

boxes = hv.Rectangles((xs-0.25, O, xs+0.25, C))
segments = hv.Segments((xs, L, xs, H))

# Color boxes where price decreased red and where price increased green
color_exp = (dim('y0')>dim('y1')).categorize({True: 'green', False: 'red'})

boxes.opts(aspect=3, fig_size=500, color=color_exp, xlabel='Time', ylabel='Price') * segments.opts(color='black')