64 lines
2.2 KiB
Python
64 lines
2.2 KiB
Python
from datetime import datetime as dt
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from matplotlib import pyplot as plt
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# einträge ohne kommentar sind von archive.org
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# ("year-month", studentenwerksbeitrag, semesterticket, semestergebühren),
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raw_data = [
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#("", , , ),
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("2011-08", 65, 0, 450), # ck ws1112, gesamtsumme
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#("2012-01", 73, 0, 450), # ck ss12, gesamtsumme
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("2012-02", 42, 31, 450), # ckre ss12, 523/450/31
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("2012-07", 42, 31, 450), #("2012-07", 73, 0, 0), # ck ws1213, gesamtsumme
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("2013-01", 42, 31, 450),
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("2013-02", 42, 31, 450), #ck ss13
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("2013-07", 42, 31, 0),
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("2013-07", 42, 31, 0), #ck ws1314
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("2013-11", 42, 33.2, 0),
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("2014-01", 42, 33.2, 0),
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("2014-01", 42, 33.2, 0), #ck ss14
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("2014-04", 42, 33.2, 0),
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("2014-06", 42, 33.2, 0),
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("2014-11", 42, 33.2, 0),
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("2015-01", 42, 33.2, 0),
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("2015-01", 42, 33.2, 0), #ck ss15
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("2015-07", 42, 33.2, 0), #ck ws1516 (@2016-09)
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("2015-08", 42, 33.2, 0),
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("2015-09", 42, 33.2, 0),
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("2016-05", 42, 38, 0), #ck ss16 (@2016-09)
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("2016-07", 42, 38, 0), #ck ws 1617 (@2016-09)
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("2016-12", 50, 38, 0),
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("2017-03", 50, 38, 0), #ck ss17
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("2017-06", 50, 38, 0), #ck ws1718
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("2017-07", 50, 38, 0),
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#("2018-02", 90.2, 0, 0), #ck ss18, gesamtsumme
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("2018-03", 50, 40.2, 0), # ckre ss18
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("2018-07", 50, 40.2, 0), # ckre ws18
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("2019-01", 50, 40.4, 0), # ckre ss19
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("2019-05", 60, 40.4, 0),
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]
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data = []
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base_date = dt(year=1,month=1,day=1)
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for raw_dt, studw, ticket, sem in raw_data:
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date = dt.strptime(raw_dt, "%Y-%m")
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data.append((date, studw, ticket, sem, (date-base_date).days))
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# plt.plot_date(date, (studw+ticket), xdate=True)
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dates, studw, tickets, sem, day_diff = zip(*data)
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if False: # single lines
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plt.plot_date(day_diff, studw, xdate=True, linestyle="solid",label="studentenwerksbeitrag")
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plt.plot_date(day_diff, tickets, xdate=True, linestyle="solid", label="semesterticket", bottom=studw)
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plt.plot_date(day_diff, sem, xdate=True)
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else: # stacked area
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if False: # with semesterbeiträge
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plt.stackplot(dates, (tickets, studw, sem), labels=("semesterticket","studentenwerksbeitrag", "semesterbeitrag"))
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else: # only ticket & studentenwerk
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plt.stackplot(dates, (tickets, studw), labels=("semesterticket","studentenwerksbeitrag"))
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plt.legend(loc="upper left")
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plt.savefig("semesterbeiträge.png")
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