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"""
Quantile-Quantile Plot
----------------------
A quantile-quantile plot comparing input data to theoretical distributions.
"""
# category: scatter plots
import altair as alt
from vega_datasets import data
source = data.normal_2d.url
base = alt.Chart(source).transform_quantile(
'u',
step=0.01,
as_ = ['p', 'v']
).transform_calculate(
uniform = 'quantileUniform(datum.p)',
normal = 'quantileNormal(datum.p)'
).mark_point().encode(
alt.Y('v:Q')
)
base.encode(x='uniform:Q') | base.encode(x='normal:Q')
|
