% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/extract_cif_data.R
\name{extract_space_group_number}
\alias{extract_space_group_number}
\title{Extract Space Group Number from CIF Content}
\usage{
extract_space_group_number(cif_content)
}
\arguments{
\item{cif_content}{A \code{data.table} containing the lines of a CIF file.}
}
\value{
A character string of the space group number, or \code{NA} if not found.
}
\description{
Extracts the International Tables space group number (e.g., from \verb{_space_group_IT_number}).
}
\examples{
cif_path <- system.file("extdata", "1590946.cif", package = "crystract")
if (file.exists(cif_path)) {
  cif_content <- read_cif_files(cif_path)[[1]]
  extract_space_group_number(cif_content)
}
}
\seealso{
Other extractors: 
\code{\link{extract_atomic_coordinates}()},
\code{\link{extract_chemical_formula}()},
\code{\link{extract_database_code}()},
\code{\link{extract_space_group_name}()},
\code{\link{extract_structure_type}()},
\code{\link{extract_symmetry_operations}()},
\code{\link{extract_unit_cell_metrics}()}
}
\concept{extractors}
