Scala - Scala 3 New Features Overview
• Scala 3 introduces significant syntax improvements including top-level definitions, new control structure syntax, and optional braces, making code more concise and Python-like
Read more →New
PySpark - Add New Column to DataFrame (withColumn)
The withColumn() method is the workhorse of PySpark DataFrame transformations. Whether you’re deriving new features, applying business logic, or cleaning data, you’ll use this method constantly. It…
Pandas - Add New Column to DataFrame
The simplest method to add a column is direct assignment using bracket notation. This approach works for scalar values, lists, arrays, or Series objects.
Read more →How to Add a New Column in Pandas
Adding columns to a Pandas DataFrame is one of the most common operations you’ll perform in data analysis. Whether you’re calculating derived metrics, categorizing data, or preparing features for…
Read more →How to Add a New Column in Polars
If you’re coming from pandas, your first instinct might be to write df['new_col'] = value. That won’t work in Polars. The library takes an immutable approach to DataFrames—every transformation…
How to Add a New Column in PySpark
Adding columns to a PySpark DataFrame is one of the most common transformations you’ll perform. Whether you’re calculating derived metrics, categorizing data, or preparing features for machine…
Read more →