快速建立一個pandas Data_Frame ,方便測試
阿新 • • 發佈:2018-12-13
import numpy as np
import pandas as pd
data = np.random.randn(6, 4)
df = pd.DataFrame(data,columns=['a','b','c','d'])
print(df) a b c d 0 0.401976 0.735167 1.039404 -0.649782 1 -0.860005 0.437051 -0.575513 -0.333293 2 0.163809 -0.297073 0.964990 -0.599854 3 1.869033 -0.856488 0.687006 2.035814 4 1.819477 0.243325 1.306515 1.159489 5 -1.594146 0.330584 -0.862533 0.937375
第二個example:
# Make example dataframe df = pd.DataFrame([(1, 'Germany'), (2, 'France'), (3, 'Indonesia'), (4, 'France'), (5, 'France'), (6, 'Germany'), (7, 'UK'), ], columns=['groupid', 'country'], index=['a', 'b', 'c', 'd', 'e', 'f', 'g'])
第三個:
import numpy as np
import pandas as pd
df = pd.DataFrame([['Snow','M',22],['Tyrion','M',32],['Sansa','F',18],['Arya','F',14]], columns=['name','gender','age'])