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Assignment 4 source code.py
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Assignment 4 source code.py
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import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
%matplotlib notebook
df=pd.read_csv('Assignment 4 Data.csv',skiprows=1)
df.columns=['Week','Python','Java Script','Java','C++']
i=[df['Week'][x] for x in range(0,261,261//5) ]
l=['2015-Aug','2016-Aug','2017-Aug','2018-Aug','2019-Aug','2020-Aug']
plt.plot(df['Week'],df['Python'],'b-',label='python',alpha=0.75)
plt.plot(df['Week'],df['Java'],'g-',label='Java',alpha=0.75)
plt.plot(df['Week'],df['Java Script'],'r-',label='Java Script',alpha=0.75)
plt.plot(df['Week'],df['C++'],'y-',label='C++',alpha=0.75)
plt.plot(df['Week'],[80]*261,'k--',alpha=0.2)
plt.plot(df['Week'],[60]*261,'k--',alpha=0.2)
plt.plot(df['Week'],[40]*261,'k--',alpha=0.2)
plt.plot(df['Week'],[30]*261,'k--',alpha=0.2)
plt.ylabel('Number of Google Queries')
plt.title('Trends of common Programming Languages over a period of five years')
plt.legend(loc=9,frameon=False)
plt.xticks(i)
plt.xticks(i,l)
plt.gca().spines['top'].set_visible(False)
plt.gca().spines['right'].set_visible(False)