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ryantuck/lambda-test.py

Created January 27, 2016 02:20
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lambda-test.py
import pandas as pd
data = [
[1,2],
[3,4],
[4,5],
[8,9]
]
df = pd.DataFrame(data, columns=['a','b'])
print df
def my_fn(x):
return 2*x
print '-------'
df['b'] = df['b'].apply(my_fn)
print df
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