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2019-01-16 阅读量: 722
如何将pandas对象转换为指定的dtype(2)

由于数据有一些“nan”值,为了避免任何错误,我们将删除包含任何nan值的所有行。

# drop all those rows which

# have any 'nan' vlaue in it.

df.dropna(inplace = True)

# let's find out the data type of Weight column

before = type(df.Weight[0])

# Now we will convert it into 'int64' type.

df.Weight = df.We<strong>ight.astype('int64')

# let's find out the data type after casting

after = type(df.Weight[0])

# print the value of before

before

# print the value of after

after

0.0000
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