modify
Creates a new GeoDataFrame by applying transformations to the underlying DataFrame.
This function opens a modification scope where the current DataFrame can be transformed using Kotlin DataFrame operations. The transformation block receives the original DataFrame both as a receiver and as an explicit argument, allowing flexible modifications.
The Coordinate Reference System (CRS) remains unchanged.
Return
A new GeoDataFrame instance with the modified DataFrame while preserving the original CRS.
Parameters
block
A lambda defining the transformations to apply to the DataFrame.