russell_lab 2.7.0

Scientific laboratory for linear algebra and numerical mathematics
Documentation 
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use russell_lab::{StrError, read_data};
use std::env;
use std::path::PathBuf;

fn main() -> Result<(), StrError> {
    // get the asset's full path
    let root = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
    let full_path = root.join("data/tables/clay-data.txt");

    // read the file
    let data = read_data(&full_path, &["sr", "ea", "er"])?;

    // check the columns
    assert_eq!(data.get("sr").unwrap(), &[1.0, 2.0, 3.0, 4.0, 5.0]);
    assert_eq!(data.get("ea").unwrap(), &[-6.0, 7.0, 8.0, 9.0, 10.0]);
    assert_eq!(data.get("er").unwrap(), &[0.1, 0.2, 0.2, 0.4, 0.5]);
    Ok(())
}