Laravel 5.5 Collection部分分组

Question

我需要有关如何按位置然后按大小将以下收藏分组的帮助：

#The channel containing some eye-blinks
X = f1ep1_data[:,[4]]

#run ICA on signal
ica = FastICA(n_components=2)
ica.fit(X)

#reconstruct signal with independent components
components = ica.fit_transform(X)
X_restored = ica.inverse_transform(components)

fig1 = plt.figure()
plt.subplot(3,1,1)
plt.title("Original signal")
plt.plot(f1ep1_timescale, X)

plt.subplot(3,1,2)
plt.title("Components")
plt.plot(f1ep1_timescale, components)

plt.subplot(3,1,3)
plt.title("Signal Reconstructed")
plt.plot(f1ep1_timescale, X_restored)
plt.draw()

这是预期的结果：

真的很感谢，谢谢！

Answer 1

可能不优雅，但这可以做到：

$locations = $this->records->unique('location_id');
$transformed = [];

foreach ($locations as $location) {
    $sizes = $this->records->whereStrict('location_id', $location->location_id);
    $transformedSizes = [];

    foreach ($sizes as $size) {
        $transformedSizes[] = [
            'id' => $size->size_id,
            'code' => $size->size_code,
            'available_boxes' => $size->available_boxes
        ];
    };

    $transformed[] = array_merge(
        [
            'id' => $location->location_id,
            'address' => $location->location_address,
            'image' => $location->location_image
        ],
        [
            'sizes' => $transformedSizes
        ]
    );
}

return $transformed;