<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>

CC BY-SA 3.0
2017-07-19T08:55:52.523Z
2017-07-19T08:55:52.523Z
Dan
<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>

CC BY-SA 3.0
2017-07-19T06:31:15.853Z
Cross-posted [on biostars](https://www.biostars.org/p/263414/)
Devon Ryan
<r><file-formats>
What does the "X_OS_IND" column mean?
# 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.
> 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/)  

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## 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.


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