Answers.Body: <p>According to <a href="https://groups.google.com/forum/#!topic/ucsc-cancer-genomics-browser/YvKnWZSsw1Q" rel="noreferrer">this link</a>, 1=death 0=censor and null=no data.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-07-19T08:55:52.523Z
Answers.LastActivityDate: 2017-07-19T08:55:52.523Z
Answers.UserDisplayName: Dan
Body: <p>I want to survival analysis using the subset of TCGA LUAD dataset, which identifier are located <a href="https://xenabrowser.net/datapages/?host=https%3A%2F%2Ftcga.xenahubs.net&amp;dataset=TCGA.LUAD.sampleMap%2FLUAD_clinicalMatrix&amp;label=Phenotypes&amp;allIdentifiers=true" rel="nofollow noreferrer">here</a>.</p>
  
  <pre><code>&gt; head(LUAD_clinicalMatrix[,c("X_EVENT","X_OS_IND")])
    X_EVENT X_OS_IND
  1      NA       NA
  2       0        0
  3       1        1
  4       0        0
  5       0        0
  6       0        0
  
  &gt; all(LUAD_clinicalMatrix$X_EVENT==LUAD_clinicalMatrix$X_OS_UNIT)
  [1] FALSE
  </code></pre>
  
  <p>I want to know which identifier means the sample is alive or dead, and "1" means alive or dead?</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-07-19T06:31:15.853Z
Comments.Text: Cross-posted [on biostars](https://www.biostars.org/p/263414/)
Comments.UserDisplayName: Devon Ryan
Tags: <r><file-formats>
Title: What does the "X_OS_IND" column mean?
ThreadText: # What does the "X_OS_IND" column mean?
  
  (Asked by: username_0 on 2017-07-19)
  
  I want to survival analysis using the subset of TCGA LUAD dataset, which identifier are located [here](https://xenabrowser.net/datapages/?host=https%3A%2F%2Ftcga.xenahubs.net&dataset=TCGA.LUAD.sampleMap%2FLUAD_clinicalMatrix&label=Phenotypes&allIdentifiers=true).
  
  ```
  > head(LUAD_clinicalMatrix[,c("X_EVENT","X_OS_IND")])
    X_EVENT X_OS_IND
  1      NA       NA
  2       0        0
  3       1        1
  4       0        0
  5       0        0
  6       0        0
  
  > all(LUAD_clinicalMatrix$X_EVENT==LUAD_clinicalMatrix$X_OS_UNIT)
  [1] FALSE
  
  ```
  
  I want to know which identifier means the sample is alive or dead, and "1" means alive or dead?
  
  **Tags:** r, file-formats
  
  > **Comments:**
  > **username_1**: Cross-posted [on biostars](https://www.biostars.org/p/263414/)  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2017-07-19. Score: 5
  
  According to [this link](https://groups.google.com/forum/#!topic/ucsc-cancer-genomics-browser/YvKnWZSsw1Q), 1=death 0=censor and null=no data.
  
  
  ---
  
  