33 lines
1.1 KiB
Python
33 lines
1.1 KiB
Python
import matplotlib.pyplot as plt
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import numpy as np
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def main():
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with open('norway_municipalities_2017.csv') as f:
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# we will make a dict where the the kei is the district and the value the population
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d = {}
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# assume the csv file always has a header
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l_iter = iter(f)
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l_iter.__next__()
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for l in l_iter:
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# we get a list where 0 is the kommune name, 1 is what fylke it is in and 2 is the population
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ll = l.strip("\n").split(',')
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name = ll[1]
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if name in d.keys():
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d.update({name: d.get(name) + int(ll[2])})
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else:
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d.update({name: int(ll[2])})
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head = ["District", "Population"]
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res = {key: val for key, val in sorted(d.items(), key = lambda ele: ele[1], reverse=True)}
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n = len(res.keys())
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x = 0.5 + np.arange(n)
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y = res.values()
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fig, ax = plt.subplots()
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ax.bar(res.keys(), y, edgecolor="white", linewidth=0.7)
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ax.set(xlabel=head[0], ylabel=head[1])
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plt.xticks(rotation = 90)
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plt.show()
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if __name__ == "__main__":
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main() |