%matplotlib inline
from ggplot import *

import pandas as pd
import numpy as np

df = pd.DataFrame(dict(
    x=np.random.normal(0, 1, 1000),
    y=np.random.normal(0, 1, 1000),
    w=np.random.uniform(-1, 1, 1000)
))
df.head()

	w	x	y
0	-0.810393	-1.020157	-0.569955
1	-0.883547	-1.155482	0.052136
2	0.450729	-0.740759	0.468624
3	0.198120	-0.382605	0.299596
4	-0.959025	0.574729	0.494365

ggplot(df, aes(x='x', y='y', fill='w')) + geom_tile()

<ggplot: (284506149)>

ggplot(df, aes(x='x', y='y', fill='w')) + geom_bin2d()

<ggplot: (285986533)>

ggplot(df, aes(x='x', y='y', fill='w')) + geom_tile(ybins=5)

<ggplot: (290980241)>

ggplot(df, aes(x='x', y='y', fill='w')) + geom_tile(xbins=8, ybins=10)

<ggplot: (292341169)>