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Merged
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Aug 14, 2017
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[ja] follows #5126 #5180

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53 changes: 43 additions & 10 deletions ja/core-libraries/collections.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -50,16 +50,16 @@
.. csv-table::
:class: docutils internal-toc

:php:meth:`append`, :php:meth:`buffered`, :php:meth:`chunk`, :php:meth:`chunkWithKeys`
:php:meth:`combine`, :php:meth:`compile`, :php:meth:`contains`, :php:meth:`countBy`,
:php:meth:`each`, :php:meth:`every`, :php:meth:`extract`, :php:meth:`filter`
:php:meth:`first`, :php:meth:`groupBy`, :php:meth:`indexBy`, :php:meth:`insert`
:php:meth:`isEmpty`, :php:meth:`last`, :php:meth:`listNested`, :php:meth:`map`
:php:meth:`match`, :php:meth:`max`, :php:meth:`min`, :php:meth:`nest`
:php:meth:`reduce`, :php:meth:`reject`, :php:meth:`sample`, :php:meth:`shuffle`
:php:meth:`skip`, :php:meth:`some`, :php:meth:`sortBy`, :php:meth:`stopWhen`
:php:meth:`sumOf`, :php:meth:`take`, :php:meth:`through`, :php:meth:`transpose`
:php:meth:`unfold`, :php:meth:`zip`
:php:meth:`append`, :php:meth:`avg`, :php:meth:`buffered`, :php:meth:`chunk`
:php:meth:`chunkWithKeys`, :php:meth:`combine`, :php:meth:`compile`, :php:meth:`contains`
:php:meth:`countBy`, :php:meth:`each`, :php:meth:`every`, :php:meth:`extract`
:php:meth:`filter`, :php:meth:`first`, :php:meth:`groupBy`, :php:meth:`indexBy`
:php:meth:`insert`, :php:meth:`isEmpty`, :php:meth:`last`, :php:meth:`listNested`
:php:meth:`map`, :php:meth:`match`, :php:meth:`max`, :php:meth:`median`
:php:meth:`min`, :php:meth:`nest`, :php:meth:`reduce`, :php:meth:`reject`
:php:meth:`sample`, :php:meth:`shuffle`, :php:meth:`skip`, :php:meth:`some`
:php:meth:`sortBy`, :php:meth:`stopWhen`, :php:meth:`sumOf`, :php:meth:`take`
:php:meth:`through`, :php:meth:`transpose`, :php:meth:`unfold`, :php:meth:`zip`

反復
====
Expand Down Expand Up @@ -439,6 +439,39 @@ PHP 5.5 以降を使用している場合は、 コレクション内の各ア

$sumOfDadAges = $collection->sumOf('dad.age');

.. php:method:: avg($matcher = null)

コレクション内の要素の平均値を計算します。必要に応じて、平均値を生成するためのマッチャーパスや
値を抽出する関数を指定してください。 ::

$items = [
['invoice' => ['total' => 100]],
['invoice' => ['total' => 200]],
];

// 平均値: 150
$average = (new Collection($items))->avg('invoice.total');

.. versionadded:: 3.5.0

.. php:method:: median($matcher = null)

要素の集合の中央値を計算します。必要に応じて、中央値を生成するためのマッチャーパスや
値を抽出する関数を指定してください。 ::

$items = [
['invoice' => ['total' => 400]],
['invoice' => ['total' => 500]],
['invoice' => ['total' => 100]],
['invoice' => ['total' => 333]],
['invoice' => ['total' => 200]],
];

// 中央値: 333
$median = (new Collection($items))->median('invoice.total');

.. versionadded:: 3.5.0

グループ化とカウント
--------------------

Expand Down