R: Convert Trained 'XGBoost' Model to SQL Query

# Convert Trained 'XGBoost' Model to SQL Query

## Documentation for package ‘xgb2sql’ version 0.1.3

- DESCRIPTION file
- User guides, package vignettes and other documentation
- Package NEWS
- Package README

## Help Pages

booster2sql | Transform XGBoost model object to SQL query.
onehot2sql | Prepare training data in R so that it is ready for XGBoost model fitting. Meta information is stored so the exact transformation can be applied to any new data. It also outputs SQL query performing the exact one-hot encoding for in-database data preparation.