{
  "id": 190190,
  "title": "There are 345225 inf in training data",
  "url": "/competitions/riiid-test-answer-prediction/discussion/190190",
  "author_name": "",
  "post_date": "2020-10-10T14:51:15.857392300Z",
  "votes": 3,
  "comment_count": 5,
  "views": 0,
  "content": "<p>I found that there are 345225 inf in the training data. I am concerned about the inf in the column 'prior_question_elapsed_time'. What does that imply? Should I just blindly replace them into NaN?</p>",
  "messages": [
    {
      "id": "1045361",
      "postDate": "10/10/2020 14:51:15",
      "content": "<p>I found that there are 345225 inf in the training data. I am concerned about the inf in the column 'prior_question_elapsed_time'. What does that imply? Should I just blindly replace them into NaN?</p>",
      "rawMarkdown": "I found that there are 345225 inf in the training data. I am concerned about the inf in the column 'prior_question_elapsed_time'. What does that imply? Should I just blindly replace them into NaN?",
      "votes": null
    },
    {
      "id": "1045382",
      "postDate": "10/10/2020 15:11:18",
      "content": "<p>I just checked. All the inf are actually in that specific column.</p>",
      "rawMarkdown": "I just checked. All the inf are actually in that specific column.",
      "votes": null
    },
    {
      "id": "1045396",
      "postDate": "10/10/2020 15:27:23",
      "content": "<p>Does they refer to the initial operation of each student? Since they refers to the PRIOR elapsed time, but if it is the first there is not prior elapsed time</p>",
      "rawMarkdown": "Does they refer to the initial operation of each student? Since they refers to the PRIOR elapsed time, but if it is the first there is not prior elapsed time",
      "votes": null
    },
    {
      "id": "1045405",
      "postDate": "10/10/2020 15:37:23",
      "content": "<p>initial operation is defined by NaN</p>",
      "rawMarkdown": "initial operation is defined by NaN",
      "votes": null
    },
    {
      "id": "1046041",
      "postDate": "10/11/2020 09:47:56",
      "content": "<p>You right, do you discover why there are inf values?</p>",
      "rawMarkdown": "You right, do you discover why there are inf values?",
      "votes": null
    },
    {
      "id": "1046195",
      "postDate": "10/11/2020 12:29:16",
      "content": "<p>Not yet. Hoping someone from kaggle will answer it.</p>",
      "rawMarkdown": "Not yet. Hoping someone from kaggle will answer it.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1045382,
      "author_name": "youktinathbhowmick",
      "author_url": "",
      "post_date": "10/10/2020 15:11:18",
      "content": "<p>I just checked. All the inf are actually in that specific column.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 1045396,
      "author_name": "domizianostingi",
      "author_url": "",
      "post_date": "10/10/2020 15:27:23",
      "content": "<p>Does they refer to the initial operation of each student? Since they refers to the PRIOR elapsed time, but if it is the first there is not prior elapsed time</p>",
      "votes": null,
      "replies": [
        {
          "id": 1045405,
          "author_name": "youktinathbhowmick",
          "author_url": "",
          "post_date": "10/10/2020 15:37:23",
          "content": "<p>initial operation is defined by NaN</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1046041,
          "author_name": "domizianostingi",
          "author_url": "",
          "post_date": "10/11/2020 09:47:56",
          "content": "<p>You right, do you discover why there are inf values?</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 1046195,
          "author_name": "youktinathbhowmick",
          "author_url": "",
          "post_date": "10/11/2020 12:29:16",
          "content": "<p>Not yet. Hoping someone from kaggle will answer it.</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1045361": "I found that there are 345225 inf in the training data. I am concerned about the inf in the column 'prior_question_elapsed_time'. What does that imply? Should I just blindly replace them into NaN?",
    "1045382": "I just checked. All the inf are actually in that specific column.",
    "1045396": "Does they refer to the initial operation of each student? Since they refers to the PRIOR elapsed time, but if it is the first there is not prior elapsed time",
    "1045405": "initial operation is defined by NaN",
    "1046041": "You right, do you discover why there are inf values?",
    "1046195": "Not yet. Hoping someone from kaggle will answer it."
  },
  "source": "meta"
}