python-pandasHow to draw overlay data frame bar 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.plot.hist(alpha=0.5)
plt.show()ctrl + cgithub

`import pandas as pd` load Pandas module	`import numpy as np` load Numpy module for Python
`.random.normal(0,1,100)` generates `100` elements with `0` mean and `1` standard deviation	`.DataFrame.from_dict` creates Pandas DataFrame object from given dict (`a`)
`.plot.hist` plots DataFrame overlay bars chart	`import matplotlib.pyplot as plt` loads Matplotlib module to use plotting capabilities
`plt.show()` renders plotted data	`alpha=0.5` make bars semi-transparent

How to draw overlay data frame bar charts, python pandas

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.plot.hist(alpha=0.5)
plt.show()

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python-pandasHow to draw overlay data frame bar charts

Usage example

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More of Python Pandas