Data Structure ?
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Data Structure ?
*The above analysis is the result extracted and analyzed by the system, and the specific actual data shall prevail.
README.md
## コンテキスト
これらのデータセットは、Wolfgang JankとGalit Shmueliによる『Modeling Online Auctions』（Wiley and Sons、ISBN: 978 - 0 - 470 - 47565 - 2、2010年7月）の[コンパニオンウェブサイト](http://www.modelingonlineauctions.com/home)から取得したものです。
## 内容
これらのデータセットには、カルティエの腕時計、Palm Pilot M515 PDA、Xboxゲーム機、そしてスワロフスキーのビーズに関するeBayのオークション情報が含まれています。
**auction.csv**には9つの変数が含まれています。
* **auctionid**：オークションの一意の識別子
* **bid**：入札者が入れた代理入札
* **bidtime**：オークション開始から入札が行われた日数
* **bidder**：入札者のeBayユーザー名
* **bidderrate**：入札者のeBayフィードバック評価
* **openbid**：売り手が設定した入札開始価格
* **price**：商品が売却された終了価格（2番目に高い入札価格 + 増分に相当）
* **item**：オークションの商品
* **auction_type**
**swarovski.csv**には5つの変数が含まれています。
* **Seller**（売り手）
* **Bidder**（入札者）
* **Weight**（重量）
* **Bidder.Volume**（入札者の取引量）
* **Seller.Volume**（売り手の取引量）
## 謝辞
元のデータセットは[こちら](http://www.modelingonlineauctions.com/datasets)で見つけることができます。
## 着想
検討に値するいくつかのアイデア：
* 各商品について、入札価格、入札時間、および終了価格の間にはどのような関係がありますか？これはオークションの期間、入札開始価格、または入札者の評価によって異なりますか？
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