plot a line chart

import matplotlib.pyplot as plt
a=[1,2,3,4]
b=[2,4,6,8]
plt.plot(a,b)
plt.show()

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plot a line chart and giving xlabel and ylabel

import matplotlib.pyplot as plt
a=[1,2,3,4]
b=[2,4,6,8]
plt.xlabel('X Values')
plt.ylabel('Y Values')
plt.plot(a,b)
plt.show()

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 plot a bar graph

import matplotlib.pyplot as plt; plt.rcdefaults()
import numpy as np
import matplotlib.pyplot as plt

objects = ('Python', 'C++', 'Java', 'Perl', 'Scala', 'Lisp')
y_pos = np.arange(len(objects))
performance = [10,8,6,4,2,1]

plt.bar(y_pos, performance)
plt.xticks(y_pos, objects)
plt.ylabel('Usage')
plt.title('Programming language usage')

plt.show()
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scatter plot

import matplotlib.pyplot as plt
a=[1,2,3,4]
b=[2,4,6,8]
plt.scatter(a,b)
plt.show()

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plot a bar graph

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[10,8,6,7];
plt.bar(a,b);
plt.show()

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 plot a bar graph with ylabel

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[10,8,6,7];
plt.ylabel("Users in Millions")
plt.bar(a,b);
plt.show()
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 line chart with title

import matplotlib.pyplot as plt
a=[1,2,3,4]
b=[2,4,6,8]
plt.title("My Chart 1")
plt.plot(a,b)
plt.show()
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 bar chart with yticks

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[10,8,6,7];
plt.yticks([0,1,2,3,4,5,6,7,8,9,10])
plt.bar(a,b);
plt.show()

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 savefigure

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[10,8,6,7];
plt.yticks([0,1,2,3,4,5,6,7,8,9,10])
plt.bar(a,b);
plt.savefig("my chart 1.pdf");
plt.show()

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bar chart with y lim

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[10,8,6,7];
plt.ylim(0,12);
plt.bar(a,b);
plt.show()

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 pie chart

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[20,30,10,40];
plt.pie(b,labels=a);
plt.show()

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pie chart with autopct

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[20,30,10,40];
plt.pie(b,labels=a,autopct="%1.1f%%");
plt.show()

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pie chart with explode

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[20,30,10,40];
expl=[0,0.2,0,0]
plt.pie(b,labels=a,explode=expl,autopct="%1.1f%%");
plt.show()

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pie chart with colours

import matplotlib.pyplot as plt;
a=["java","c++","python","html"];
b=[20,30,10,40];
expl=[0,0.2,0,0]
colr=["red","blue","green","yellow"]
plt.pie(b,labels=a,explode=expl,colors=colr,autopct="%1.1f%%");
plt.show()

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plot more than one graph

import matplotlib.pyplot as plt
t1=[1,2,3,4]
t2=[2,4,6,8]
t3=[3,7,8,9]
t4=[4,5,6,7]
plt.plot(t1,t2,"r",t3,t4,"b")
plt.show()
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