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Series & DataFrames

Series construction DataFrame construction index and columns dtypes inspection head(), tail(), sample() assign() new columns rename() labels astype() conversion

Selection & Filtering

column selection loc[] label selection iloc[] positional selection Boolean filtering query() isin() between() where() and mask()

Cleaning Data

isna() and notna() dropna() fillna() duplicated() and drop_duplicates() replace() string strip and normalize to_numeric() coercion category dtype

Grouping & Aggregation

groupby() basics multiple aggregations with agg() named aggregation transform() filter() groups value_counts() pivot_table() crosstab()

Joining & Reshaping

merge() inner join left merge join() on index concat() rows concat() columns melt() pivot() stack() and unstack()

Time Series & I/O

to_datetime() DatetimeIndex resample() rolling() shift() read_csv() read_json() to_csv()

Pandas / Series & DataFrames

rename() labels

Learn rename() labels in Pandas with a dedicated explanation, a concept-specific example, practical cautions, and a mastery check.

12 min read • Beginner

pandas-007.py

python

import pandas as pd
df=pd.DataFrame({'cust_id':[1,2],'amt':[90,120]})
print(df.rename(columns={'cust_id':'customer_id','amt':'amount'}))

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

rename() labels Mastery Check →

assign() new columns

astype() conversion