Encoding One-hot encoding df.to_dummies Conversion Array of hashes df.rows(named: true) Hash of series df.to_h CSV df.to_csv # or df.write_csv("file.csv") Parquet df.write_parquet("file.parquet") JSON df.write_json("file.json") # or df.write_ndjson("file.ndjson") Feather / ...
Encoding One-hot encoding df.to_dummies Conversion Array of hashes df.rows(named: true) Hash of series df.to_h CSV df.to_csv # or df.write_csv("file.csv") Parquet df.write_parquet("file.parquet") Numo array df.to_numo Types You can specify column types when creating a data frame...