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Tidy Falkensee case study #2626

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121 changes: 58 additions & 63 deletions altair/examples/falkensee.py
Original file line number Diff line number Diff line change
@@ -1,82 +1,77 @@
"""
Falkensee
-----------------------
This example is a reproduction of the Falkensee plot found in the vega-lite examples.
Population of Falkensee from 1875 to 2014
-----------------------------------------
This example is a reproduction of the Falkensee plot found in the Vega-Lite examples.
"""
# category: case studies
import altair as alt

source = [
{"year": "1875", "population": 1309},
{"year": "1890", "population": 1558},
{"year": "1910", "population": 4512},
{"year": "1925", "population": 8180},
{"year": "1933", "population": 15915},
{"year": "1939", "population": 24824},
{"year": "1946", "population": 28275},
{"year": "1950", "population": 29189},
{"year": "1964", "population": 29881},
{"year": "1971", "population": 26007},
{"year": "1981", "population": 24029},
{"year": "1985", "population": 23340},
{"year": "1989", "population": 22307},
{"year": "1990", "population": 22087},
{"year": "1991", "population": 22139},
{"year": "1992", "population": 22105},
{"year": "1993", "population": 22242},
{"year": "1994", "population": 22801},
{"year": "1995", "population": 24273},
{"year": "1996", "population": 25640},
{"year": "1997", "population": 27393},
{"year": "1998", "population": 29505},
{"year": "1999", "population": 32124},
{"year": "2000", "population": 33791},
{"year": "2001", "population": 35297},
{"year": "2002", "population": 36179},
{"year": "2003", "population": 36829},
{"year": "2004", "population": 37493},
{"year": "2005", "population": 38376},
{"year": "2006", "population": 39008},
{"year": "2007", "population": 39366},
{"year": "2008", "population": 39821},
{"year": "2009", "population": 40179},
{"year": "2010", "population": 40511},
{"year": "2011", "population": 40465},
{"year": "2012", "population": 40905},
{"year": "2013", "population": 41258},
{"year": "2014", "population": 41777}
]
{"year": "1875", "population": 1309},
{"year": "1890", "population": 1558},
{"year": "1910", "population": 4512},
{"year": "1925", "population": 8180},
{"year": "1933", "population": 15915},
{"year": "1939", "population": 24824},
{"year": "1946", "population": 28275},
{"year": "1950", "population": 29189},
{"year": "1964", "population": 29881},
{"year": "1971", "population": 26007},
{"year": "1981", "population": 24029},
{"year": "1985", "population": 23340},
{"year": "1989", "population": 22307},
{"year": "1990", "population": 22087},
{"year": "1991", "population": 22139},
{"year": "1992", "population": 22105},
{"year": "1993", "population": 22242},
{"year": "1994", "population": 22801},
{"year": "1995", "population": 24273},
{"year": "1996", "population": 25640},
{"year": "1997", "population": 27393},
{"year": "1998", "population": 29505},
{"year": "1999", "population": 32124},
{"year": "2000", "population": 33791},
{"year": "2001", "population": 35297},
{"year": "2002", "population": 36179},
{"year": "2003", "population": 36829},
{"year": "2004", "population": 37493},
{"year": "2005", "population": 38376},
{"year": "2006", "population": 39008},
{"year": "2007", "population": 39366},
{"year": "2008", "population": 39821},
{"year": "2009", "population": 40179},
{"year": "2010", "population": 40511},
{"year": "2011", "population": 40465},
{"year": "2012", "population": 40905},
{"year": "2013", "population": 41258},
{"year": "2014", "population": 41777},
]

source2 = [{
"start": "1933",
"end": "1945",
"event": "Nazi Rule"
},
{
"start": "1948",
"end": "1989",
"event": "GDR (East Germany)"
}]
source2 = [
{"start": "1933", "end": "1945", "event": "Nazi Rule"},
{"start": "1948", "end": "1989", "event": "GDR (East Germany)"},
]


source = alt.pd.DataFrame(source)
source2 = alt.pd.DataFrame(source2)


line = alt.Chart(source).mark_line(color='#333').encode(
alt.X('year:T', axis=alt.Axis(format='%Y')),
y='population'
).properties(
width=500,
height=300
line = alt.Chart(source).mark_line(color="#333").encode(
x=alt.X("year:T", axis=alt.Axis(format="%Y"), title="Year"),
y=alt.Y("population", title="Population"),
)

point = line.mark_point(color='#333')
point = line.mark_point(color="#333")

rect = alt.Chart(source2).mark_rect().encode(
x='start:T',
x2='end:T',
color='event:N'
x="start:T",
x2="end:T",
color=alt.Color("event:N", title="Event")
)

rect + line + point
(rect + line + point).properties(
title="Population of Falkensee from 1875 to 2014",
width=500,
height=300
)