Transform a Wide-Format Dataframe to a Long-Format Dataframe

This function takes a dataframe with a wide-format structure, pivots specified columns to a long format, recodes anatomical positions, and returns a new dataframe where each row represents a single positive lymph node.

Usage

emii_get_lymph_nodes_statd(df)

Arguments

df

A dataframe containing patient data with specific column structures.

Value

A dataframe in long-format with one row per positive lymph node, including recoded anatomical position descriptions.

Details

EMBRACE-II Only

LN at diagnosis