Detect the numeric columns that appears as characters due to the presence of some character values in the column.
Source:R/convert_to_numeric.R
      detect_to_numeric_columns.RdDetect the numeric columns that appears as characters due to the presence of some character values in the column.
Arguments
- scan_res
 A
<data.frame>that corresponds to the result from thescan_datafunction- data
 The input
<data.frame>or<linelist>