I Just Want To Plot Using Plotters Data From A Polars Dataframe In Rust Top 14 Favorites

To plot data from a Polars dataframe using Plotters in Rust, you can follow these steps:

1. First, make sure that you have the plotters and polars crates installed in your project. You can add them to your Cargo.toml file as dependencies:

makefile
[dependencies]
plotters = "0.3.0"
polars = "0.16.0"

1. Import the necessary modules in your Rust file:

rust
use plotters::prelude::*;
use polars::prelude::*;

1. Create a Polars dataframe with the data you want to plot. For example, you can create a simple dataframe with two columns, x and y, and three rows:

rust
let df = DataFrame::new(vec![
    Series::new("x", &[1, 2, 3]),
    Series::new("y", &[2, 4, 1]),
]).unwrap();

1. Create a Plotters drawing area and set its dimensions:

rust
let root = BitMapBackend::new("plot.png", (640, 480)).into_drawing_area();

1. Create a scatter plot of the data in the Polars dataframe using the Plotters API:

rust
root.draw(&ChartBuilder::on(&root)
    .caption("Scatter plot", ("sans-serif", 20))
    .x_label_area_size(40)
    .y_label_area_size(40)
    .build_cartesian_2d(0..5, 0..5)?
    .configure_mesh()
    .draw())?;

root.draw(&df
    .scatter("x", "y")
    .unwrap()
    .into_iter()
    .map(|(x, y)| Circle::new((x as i32, y as i32), 3, BLUE.filled()))
    .collect::<Vec<_>>())?;

This code creates a scatter plot with the x-axis and y-axis ranges set to 0-5, and draws blue circles at the x-y coordinates in the Polars dataframe.

1. Finally, call the present() method on the drawing area to save the plot to a file:

rust
root.present()?;

Here’s the complete code:

rust
use plotters::prelude::*;
use polars::prelude::*;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let df = DataFrame::new(vec![
        Series::new("x", &[1, 2, 3]),
        Series::new("y", &[2, 4, 1]),
    ]).unwrap();

    let root = BitMapBackend::new("plot.png", (640, 480)).into_drawing_area();

    root.draw(&ChartBuilder::on(&root)
        .caption("Scatter plot", ("sans-serif", 20))
        .x_label_area_size(40)
        .y_label_area_size(40)
        .build_cartesian_2d(0..5, 0..5)?
        .configure_mesh()
        .draw())?;

    root.draw(&df
        .scatter("x", "y")
        .unwrap()
        .into_iter()
        .map(|(x, y)| Circle::new((x as i32, y as i32), 3, BLUE.filled()))
        .collect::<Vec<_>>())?;

    root.present()?;
    Ok(())
}

This code creates a scatter plot and saves it to a file named plot.png in the current directory. You can modify the plot and file parameters as needed for your use case.