python-pandasHow to draw data frame histogram (bars charts)
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
a = {'a': np.random.normal(0,1,100), 'b' : np.random.normal(1,2,100)}
df = pd.DataFrame.from_dict(a)
df.hist()
plt.show()ctrl + cimport pandas as pdload Pandas module | import numpy as npload Numpy module for Python |
.random.normal(0,1,100)generates | .DataFrame.from_dictcreates Pandas DataFrame object from given dict ( |
.hist()plots DataFrame data as a bar chart | import matplotlib.pyplot as pltloads Matplotlib module to use plotting capabilities |
plt.show()renders plotted data | |
Usage example
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
a = {'a': np.random.normal(0,1,100), 'b' : np.random.normal(1,2,100)}
df = pd.DataFrame.from_dict(a)
df.hist()
plt.show()More of Python Pandas
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