raku Dan::Polars read_csv, to-dataset example

gistfile1.txt

#!/usr/bin/env raku

use lib '../lib';

use Dan;
use Dan::Polars;

my \df = DataFrame.new;
df.read_csv("../dan/src/iris.csv");
df.head;

my \ds = df.to-dataset;
say ds[3;3];

# to try this at home
# docker run -it p6steve/raku-dan:polars-2022.02-arm64 #(or -amd64)
# zef install Dan;
# git clone https://github.com/p6steve/raku-Dan-Polars.git
# cd raku-Dan-Polars
# cd dan
# cargo build
# cd ../bin
# ./synopsis-dan-polars4.raku #(or 1,2,3)