Function extract_columns 

pub fn extract_columns<P: AsRef<Path>>(
    path: P,
    columns: &[&str],
) -> Result<Vec<Vec<String>>, CsvSliceError>

Extracts specific columns from a CSV file by column name.

Parameters

• path - Path to the CSV file. Can be any type that can be converted to a Path.
• columns - Array of column names to extract.

Returns

• Result<Vec<Vec<String>>, CsvSliceError> - A vector of vectors containing the extracted column data on success, or a CsvSliceError on failure.

Example

use csv_slice::extract_columns;
let data = extract_columns("data.csv", &["Name", "Email"]).unwrap();
// This extracts the Name and Email columns from data.csv