%load_ext watermark
%watermark -a 'Hideki Tanaka (@atelierhide)' -v -p numpy,HoloViews -d
Hideki Tanaka (@atelierhide) 22/03/2015 CPython 2.7.9 IPython 3.0.0 numpy 1.9.2 HoloViews 1.0.0
import warnings
warnings.filterwarnings('ignore')
import numpy as np
from holoviews import Points
%load_ext holoviews.ipython
%%output size=150
%%opts Points [color_index=2 size_index=3 scaling_factor=200 show_grid=True]
np.random.seed(1)
data = np.random.rand(50, 4)
points = Points(data, value_dimensions=['z', 'alpha'])
points[-0.2:1.2, -0.2:1.2].hist()