Pandas ตั้งค่าคอลัมน์รายชื่อ
รหัสตัวอย่าง
ปลั๊กอินสำหรับไพธอนวิธีเปลี่ยนชื่อคอลัมน์ใน pandas dataframe
# Basic syntax:
# Assign column names to a Pandas dataframe:
pandas_dataframe.columns = ['list', 'of', 'column', 'names']
# Note, the list of column names must equal the number of columns in the
# dataframe and order matters
# Rename specific column names of a Pandas dataframe:
pandas_dataframe.rename(columns={'column_name_to_change':'new_name'})
# Note, with this approach, you can specify just the names you want to
# change and the order doesn't matter
# For rows, use "index". E.g.:
pandas_dataframe.index = ['list', 'of', 'row', 'names']
pandas_dataframe.rename(index={'row_name_to_change':'new_name'})เปลี่ยนชื่อคอลัมน์ที่แอ็กทีฟ:pandas dataframe
df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"})pandas เปลี่ยนชื่อคอลัมน์
df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"}, inplace=True)เปลี่ยนชื่อส่วนหัว pandasd
df = df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"})
สร้าง dataframe กับคอลัมน์รายชื่อ pandas
In [4]: import pandas as pd
In [5]: df = pd.DataFrame(columns=['A','B','C','D','E','F','G'])
In [6]: df
Out[6]:
Empty DataFrame
Columns: [A, B, C, D, E, F, G]
Index: []หน้าคล้ายกัน
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