Instantiation (basic)

Instantiating from an array:

php

use MammothPHP\WoollyM\DataFrame;

$arr = [
    ['a' => 1, 'b' => 2, 'c' => 3],
    ['a' => 4, 'b' => 5, 'c' => 6],
    ['a' => 7, 'b' => 8, 'c' => 9],
];

$df = DataFrame::fromArray($arr);

// equivalent
$df = new DataFrame($arr);

Import or export from/to an external source

Import (or export) from various sources including CSV, Excel, Json etc.

Import / Export modules documentation and examples

Extracting the underlying two-dimensional array

php

$myArray = $df->toArray();
print_r($myArray);

php

[
    [0] => [
            [a] => 1
            [b] => 2
            [c] => 3
        ]

    [1] => [
            [a] => 4
            [b] => 5
            [c] => 6
        ]

    [2] => [
            [a] => 7
            [b] => 8
            [c] => 9
        ]
]