Pandas DataFrame infer_objects() 方法

import pandas as pd

data = {
  "age": ["fifty", 40, 30],
  "qualified": ["No", True, False]
}

df = pd.DataFrame(data)

print("Original DataFrame:")
print(df)
print("Original dtypes:")
print(df.dtypes)

# Remove the first row in both colums

df = df.iloc[1:]

print("New DataFrame:")
print(df)

newdf = df.infer_objects()

print("New dtypes:")
print(newdf.dtypes)