{
  "id": 186405,
  "title": "Why are Weeks in the test data not zeros?",
  "url": "/competitions/osic-pulmonary-fibrosis-progression/discussion/186405",
  "author_name": "",
  "post_date": "2020-09-24T10:53:37.975093200Z",
  "votes": 2,
  "comment_count": 2,
  "views": 0,
  "content": "<p>Sorry, I did not understand it clear. It is said that we need to predict FVC values using initial FVC measurement and baseline CT scan, and baseline CT scan corresponds to Week=0. But, some values of Week in the public test.csv are not zeros. Why? Does not initial FVC measurement correspond to baseline CT? Ok, then why are they not negative also?</p>",
  "messages": [
    {
      "id": "1025135",
      "postDate": "09/24/2020 10:53:37",
      "content": "<p>Sorry, I did not understand it clear. It is said that we need to predict FVC values using initial FVC measurement and baseline CT scan, and baseline CT scan corresponds to Week=0. But, some values of Week in the public test.csv are not zeros. Why? Does not initial FVC measurement correspond to baseline CT? Ok, then why are they not negative also?</p>",
      "rawMarkdown": "Sorry, I did not understand it clear. It is said that we need to predict FVC values using initial FVC measurement and baseline CT scan, and baseline CT scan corresponds to Week=0. But, some values of Week in the public test.csv are not zeros. Why? Does not initial FVC measurement correspond to baseline CT? Ok, then why are they not negative also?",
      "votes": null
    },
    {
      "id": "1025241",
      "postDate": "09/24/2020 12:46:05",
      "content": "<p>The baseline FVC is not always the same week as the CT scan. A baseline FVC of -5 means the baseline FVC was taken 5 weeks BEFORE the CT scan. A baseline FVC of 3 was taken 3 weeks AFTER the CT scan. A baseline FVC of Zero was taken the week of the CT scan.</p>\n<p>The CT scan is always considered Week Zero.</p>",
      "rawMarkdown": "The baseline FVC is not always the same week as the CT scan. A baseline FVC of -5 means the baseline FVC was taken 5 weeks BEFORE the CT scan. A baseline FVC of 3 was taken 3 weeks AFTER the CT scan. A baseline FVC of Zero was taken the week of the CT scan.\n\nThe CT scan is always considered Week Zero.",
      "votes": null
    },
    {
      "id": "1025361",
      "postDate": "09/24/2020 13:58:46",
      "content": "<p>Are the Weeks in test.csv enumetarted accordingly to this? For example in a first row Weeks=6 means that FVC value corresponds to six weeks after supplied CT scan.</p>",
      "rawMarkdown": "Are the Weeks in test.csv enumetarted accordingly to this? For example in a first row Weeks=6 means that FVC value corresponds to six weeks after supplied CT scan.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1025241,
      "author_name": "richardepstein",
      "author_url": "",
      "post_date": "09/24/2020 12:46:05",
      "content": "<p>The baseline FVC is not always the same week as the CT scan. A baseline FVC of -5 means the baseline FVC was taken 5 weeks BEFORE the CT scan. A baseline FVC of 3 was taken 3 weeks AFTER the CT scan. A baseline FVC of Zero was taken the week of the CT scan.</p>\n<p>The CT scan is always considered Week Zero.</p>",
      "votes": null,
      "replies": [
        {
          "id": 1025361,
          "author_name": "alexeychudinov",
          "author_url": "",
          "post_date": "09/24/2020 13:58:46",
          "content": "<p>Are the Weeks in test.csv enumetarted accordingly to this? For example in a first row Weeks=6 means that FVC value corresponds to six weeks after supplied CT scan.</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1025135": "Sorry, I did not understand it clear. It is said that we need to predict FVC values using initial FVC measurement and baseline CT scan, and baseline CT scan corresponds to Week=0. But, some values of Week in the public test.csv are not zeros. Why? Does not initial FVC measurement correspond to baseline CT? Ok, then why are they not negative also?",
    "1025241": "The baseline FVC is not always the same week as the CT scan. A baseline FVC of -5 means the baseline FVC was taken 5 weeks BEFORE the CT scan. A baseline FVC of 3 was taken 3 weeks AFTER the CT scan. A baseline FVC of Zero was taken the week of the CT scan.\n\nThe CT scan is always considered Week Zero.",
    "1025361": "Are the Weeks in test.csv enumetarted accordingly to this? For example in a first row Weeks=6 means that FVC value corresponds to six weeks after supplied CT scan."
  },
  "source": "meta"
}