[R] Error message in SIS package

[Maity, Arnab K]

I try to run the following code:

sis.fit <- SIS(y = Surv(time = y[, 1], event = y[, 2]), x = x, family = "cox", penalty = "lasso", tune = "cv",
                 nfolds = 10, type.measure = "deviance", nsis = min(dim(x)), iter = FALSE, seed = 334)

I get the following error:

Error in names(coef.beta) = paste("X", ix1, sep = "") :
  'names' attribute [1] must be the same length as the vector [0].

here is some information about the data.

> head(y)
  time status
1   24      1
2   31      0
3   39      0
4   64      1
5   72      1
6    6      0
> str(y)
 num [1:46, 1:2] 24 31 39 64 72 6 87 17 53 54 ...
 - attr(*, "dimnames")=List of 2
  ..$ : chr [1:46] "1" "2" "3" "4" ...
  ..$ : chr [1:2] "time" "status"
> str(x)
 num [1:46, 1:66] 0.59234 0.30042 0.28278 -0.00966 0.08189 ...
 - attr(*, "dimnames")=List of 2
  ..$ : chr [1:46] "1" "2" "3" "4" ...
  ..$ : chr [1:66] "EIF4EBP1" "TP53BP1" "AKT1.AKT2.AKT3" "AR" ...
> sessionInfo()
R version 3.3.1 (2016-06-21)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] survival_2.39-4 SIS_0.8-3       glmnet_2.0-5    foreach_1.4.3   Matrix_1.2-6

loaded via a namespace (and not attached):
[1] tools_3.3.1      splines_3.3.1    codetools_0.2-14 grid_3.3.1       iterators_1.0.8  ncvreg_3.6-0     lattice_0.20-33
>

Please help!?




Arnab Kumar Maity
Department of Statistics
Texas A&M University
3143 TAMU, Room 401A
College Station, TX 77843
akumar at stat.tamu.edu<mailto:arnabkrmaity at stat.tamu.edu>
+1 779 777 3428<tel:%2B1%20779%20777%203428>

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