Exercise | Difficulty | Completed? |
---|---|---|
Welcome to DataFrames | Elementary | |
Select columns | Elementary | |
Select rows by label (.loc) | Elementary | |
Select rows by position (.iloc) | Elementary | |
Aggregate a column | Elementary | |
Creating a new column | Elementary | |
Modify a column | Elementary | |
Filter rows | Elementary | |
Select rows by boolean expressions | Elementary | |
Conditional column update | Elementary | |
Bucketing values using cut | Elementary | |
Map a function over each row | Elementary | |
Impute missing values | Elementary | |
Melt a wide table to long table | Elementary | |
Find NaN rows | Elementary | |
Preparing a heatmap | Easy | |
Impute missing values with past mean | Easy | |
Max of min windows | Easy | |
Customer Lifespan | Medium | |
Customer Retention | Medium | |
Customer Retention Over Time | Medium | |
Customer Retention By Month Cohort | Medium |