EXPORTING
Profesor Magallanesにより
1. From PYTHON
1.1. From Python to Python
1.1.1. pickle
1.2. From Python to R
1.2.1. parquet
1.2.1.1. feather
2. From R
2.1. From R to R
2.1.1. RDS
2.2. From R to Python
2.2.1. parquet
2.2.1.1. feather
3. **What about CSV?**
3.1. you may lose the formatting you did
3.1.1. dates
3.1.2. categorical variables