Rust polars お試し

Cargo.tomlを以下のように指定

[package]
name = "polars_project"
version = "0.1.0"
edition = "2021"

[dependencies]
polars = "0.43.1"

サンプルコード

use polars::prelude::*;

fn main() -> Result<(), PolarsError> {
    // サンプルデータフレームの作成
    let df = df! [
        "A" => [1, 2, 3, 4, 5],
        "B" => ["a", "b", "c", "d", "e"]
    ]?;

    println!("{}", df);

    Ok(())
}

結果

$ cargo run
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
     Running `target\debug\polars_project.exe`
shape: (5, 2)
┌─────┬─────┐
│ A   ┆ B   │
│ --- ┆ --- │
│ i32 ┆ str │
╞═════╪═════╡
│ 1   ┆ a   │
│ 2   ┆ b   │
│ 3   ┆ c   │
│ 4   ┆ d   │
│ 5   ┆ e   │
└─────┴─────┘