from abiasales.results import calc_exp_results

results = calc_exp_results(
    df=your_dataframe,
    exp_group_col='exp_group',
    metrics={
        'CTR': {
            'num': 'clicks', # numerator of metric
            'den': 'views', # denominator of metric
            'weight_method': 'size', # 'uniform', 'size', 'sqrt', 'intra_corr'
            'apply_linearization': False, # False, True
            'use_delta_method': True, # False, True
            'stat_method': 't_test', # 'proportion', 'z_test', 't_test', 'bootstrap'
            'var_reduction_method': 'cuped', # 'cuped', 'cupac'
            'var_reduction_covariates': ['clicks_cov', 'purchases_cov'],
            'uplift_type': 'rel', # 'abs', 'rel'
        }
    },
    use_stratification=True, # False, True
    strats_cols=['platform', 'country']
)