{
  "id": 614989,
  "title": "Extra Arena Type/Shape or Typo in Hidden Test Data?",
  "url": "/competitions/MABe-mouse-behavior-detection/discussion/614989",
  "author_name": "MaxChen303",
  "post_date": "2025-11-08T02:35:28.055000",
  "votes": 6,
  "comment_count": 0,
  "views": 0,
  "content": "<p>My first few submissions threw exceptions, and I found that the issue was likely caused by how I mapped <code>arena_shape</code> or <code>arena_type</code> to an integer during the metadata parsing stage.\nI’m using a constant mapping based on the possible values from <code>training.csv</code>, and I also handled <code>NaN</code> values in <code>arena_type</code> as a special case.</p>\n<p>I noticed there’s a typo in <code>arena_shape</code>: \"split rectangluar\" should be \"split rectangular\". I’m wondering whether the spelling is the same in the hidden test.csv, which might be causing the error in my constant map as an unexpected key.\nIf not, are there any unseen arena shapes or types in the hidden test.csv?\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F3964695%2Fc61fee1ff5a47eefd01b6304002a8800%2FScreenshot%202025-11-07%20210840.png?generation=1762568794668600&amp;alt=media\" alt=\"\"></p>",
  "messages": [
    {
      "id": 3312799,
      "postDate": "2025-11-08T02:35:28.057Z",
      "content": "<p>My first few submissions threw exceptions, and I found that the issue was likely caused by how I mapped <code>arena_shape</code> or <code>arena_type</code> to an integer during the metadata parsing stage.\nI’m using a constant mapping based on the possible values from <code>training.csv</code>, and I also handled <code>NaN</code> values in <code>arena_type</code> as a special case.</p>\n<p>I noticed there’s a typo in <code>arena_shape</code>: \"split rectangluar\" should be \"split rectangular\". I’m wondering whether the spelling is the same in the hidden test.csv, which might be causing the error in my constant map as an unexpected key.\nIf not, are there any unseen arena shapes or types in the hidden test.csv?\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F3964695%2Fc61fee1ff5a47eefd01b6304002a8800%2FScreenshot%202025-11-07%20210840.png?generation=1762568794668600&amp;alt=media\" alt=\"\"></p>",
      "rawMarkdown": "My first few submissions threw exceptions, and I found that the issue was likely caused by how I mapped `arena_shape` or `arena_type` to an integer during the metadata parsing stage.\nI’m using a constant mapping based on the possible values from `training.csv`, and I also handled `NaN` values in `arena_type` as a special case.\n\nI noticed there’s a typo in `arena_shape`: \"split rectangluar\" should be \"split rectangular\". I’m wondering whether the spelling is the same in the hidden test.csv, which might be causing the error in my constant map as an unexpected key.\nIf not, are there any unseen arena shapes or types in the hidden test.csv?\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F3964695%2Fc61fee1ff5a47eefd01b6304002a8800%2FScreenshot%202025-11-07%20210840.png?generation=1762568794668600&alt=media)\n",
      "votes": 6
    }
  ],
  "comments": [],
  "raw_markdown_by_id": {
    "3312799": "My first few submissions threw exceptions, and I found that the issue was likely caused by how I mapped `arena_shape` or `arena_type` to an integer during the metadata parsing stage.\nI’m using a constant mapping based on the possible values from `training.csv`, and I also handled `NaN` values in `arena_type` as a special case.\n\nI noticed there’s a typo in `arena_shape`: \"split rectangluar\" should be \"split rectangular\". I’m wondering whether the spelling is the same in the hidden test.csv, which might be causing the error in my constant map as an unexpected key.\nIf not, are there any unseen arena shapes or types in the hidden test.csv?\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F3964695%2Fc61fee1ff5a47eefd01b6304002a8800%2FScreenshot%202025-11-07%20210840.png?generation=1762568794668600&alt=media)\n"
  }
}