Method tableStatistics

src/csvapplication.cpp:965–990

* Returns {Number of Cols, Some kind of Variance} of the data in localStorage * Variance: number of rows that are shorter than the longest row * * @return std::pair (Number of Columns, Number of rows that are shorter than longest row) */

 *	@return		std::pair		(Number of Columns, Number of rows that are shorter than longest row)
 */
std::pair<table_index_t, table_index_t> CsvApplication::tableStatistics(CsvDataStorage localStorage) {
	table_index_t maxCols = 0;
	table_index_t shorterRows = 0;

	// table is empty
	if( localStorage.rows() == 0 ) {
		return {0, 0};
	}
	// table has just one row
	if( localStorage.rows() == 1) {
		return { static_cast<table_index_t>(localStorage.rawRow(0).size()), 0 };
	}
	// get maximum columns
	for( table_index_t r = 1; r < localStorage.rows(); ++r ) {
		if( (table_index_t) localStorage.rawRow(r).size() > maxCols ) {
			maxCols = localStorage.rawRow(r).size();
		}
	}
	// count number of shorter rows
	for( table_index_t r = 1; r < localStorage.rows(); ++r ) {
		if( (table_index_t) localStorage.rawRow(r).size() < maxCols ) {
			++shorterRows;
		}
	}
	return {maxCols, shorterRows};
}


/*