import holoviews as hv
from holoviews import opts
hv.extension('bokeh')

from bokeh.sampledata.autompg import autompg

autompg_ds = hv.Dataset(autompg)

hist = autompg_ds.hist(dimension='mpg', groupby='cyl', bin_range=(9, 46), num_bins=40, adjoin=False)

hist.opts(opts.Histogram(alpha=0.9, width=600))