Remove the internal utility .to_numeric()?

[IndrajeetPatil]

Following discussion in easystats/datawizard#206,

modelbased/R/utils.R

Lines 1 to 8 in 005e2ba

	#' @keywords internal
	#' @noRd
	.to_numeric <- function(x) {
	tryCatch(as.numeric(as.character(x)),
	error = function(e) x,
	warning = function(w) x
	)
	}

[DominiqueMakowski]

modelbased/R/estimate_grouplevel.R

Lines 82 to 84 in 04e20ef

	# Sort
	random <- random[order(random$Group, .to_numeric(random$Level), random$Parameter), ]

This is the only place where we use it