Rrepest                 Rrepest
df_pisa18               PISA 2018 Student questionnaire Database
df_talis18              TALIS 2018 Teachers Database
est                     Estimate list
grouped_sum_freqs       Grouped Frequencies
grp                     grp
inv_test                inv_test
n_obs_x                 Number of observations valid for column x
weighted.corr           Weighted Bivariate Correlation
weighted.corr.cov.n     Multivariate Correlation and Covariance
weighted.cov            Weighted Bivariate Covariance
weighted.iqr            Weighted Interquantile Range
weighted.quant          Weighted Quantile
weighted.std            Weighted Standard Deviation
weighted.var            Weighted variance
