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In [1]:
from lets_plot import *

LetsPlot.setup_html()
In [2]:
data  = {
    'x': [1, 1, 1, 1, 1, 1.5, 1.5,   2,   2,   2 ],
    'y': [1, 1, 1, 1, 1,   2,   2, 1.5, 1.5, 1.5],
    's': [3, 1, 2, 1, 4,   1,   3,   3,   3,  1],
    'n': ['a', 'b', 'a', 'c', 'a',  'a', 'b', 'c', 'a',  'b']
}

ggplot(data) + geom_pie(aes('x', 'y', slice='s', fill='n'), hole=0.3, stat='identity')
Out[2]:
In [3]:
ggplot({
    'x': [0, 20, 200],
    'y': [1, 2,  3]
}) + geom_pie(aes('x', 'y'), hole=0.2, stat='identity')
Out[3]:
In [4]:
ggplot({
    'x': [10,  20, 30],
    'y': [-100, 15, 200]
}) + geom_pie(aes('x', 'y'), hole=0.2, stat='identity')
Out[4]:
In [5]:
data2 = {
    'x':    [0, 1, 2, 3, 4,  5],
    'y':    [1, 1, 1, 1, 1,  1],
    'size': [1, 2, 5, 10, 20, 40]
}

ggplot(data2, aes('x', 'y', size='size')) + geom_pie(hole=0.2, stat='identity')
Out[5]:
In [6]:
# geom_point

ggplot(data2, aes('x', 'y', size='size')) + geom_point() + scale_size_identity()
Out[6]: