Version Compatibility

Reference examples tested with: pandas 2.2+

Before using code patterns, verify installed versions match. If versions differ:

• Python: pip show <package> then help(module.function) to check signatures
• R: packageVersion('<pkg>') then ?function_name to verify parameters

If code throws ImportError, AttributeError, or TypeError, introspect the installed package and adapt the example to match the actual API rather than retrying.

Count Matrix Ingestion

Basic CSV/TSV Loading

Goal: Load a gene expression count matrix from a delimited text file into a pandas DataFrame.

Approach: Read CSV/TSV with gene IDs as the row index, handling comment lines if present.