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?