R/national_FPsource_VARCOV_bivarlogitnormal.R
national_FPsource_VARCOV_bivarlogitnormal.RdAn array of variance-covariance matrices transformed onto the logit-scale via the delta method. Each matrix corresponds to the DHS survey logit-transformed observations for the proportion of modern contraceptives supplied by the public and private sectors at the national level
national_FPsource_VARCOV_bivarlogitnormalThe variance-covariance matrices are calculated using the survey R package: prop_mat <- svyby(~I(sector_categories), ~I(modern_method_source), design=d.s, svymean, covmat=TRUE) vcov_matrix <- vcov(prop_mat) function.