Convert GEDCOM Longitude String to Numeric

Converts GEDCOM-style longitude strings like `"E151.2093"` or `"W0.1278"` to signed decimal degrees. Returns `NA` for `NA` or unrecognised-prefix input.

Usage

gedcomLonToNumeric(x)

Arguments

x

Character vector of GEDCOM longitude values.

Value

Numeric vector of decimal degrees (positive = E, negative = W).

Examples

BGmisc:::gedcomLonToNumeric(c("E151.2093", "W0.1278", NA))
#> [1] 151.2093  -0.1278       NA