I am getting the following error every time I run a Cox model using the survival package in R. This error arose within the last few days. To illustrate the error, I am using a standard example command which is given at https://stat.ethz.ch/R-manual/R-devel/library/survival/html/coxph.html:
# Fit a stratified model, clustered on patients
library(survival)
bladder1 <- bladder[bladder$enum < 5, ]
coxph(Surv(stop, event) ~ (rx + size + number) * strata(enum) +
cluster(id), bladder1)
The error I get is as follows:
Error in fitter(X, Y, strats, offset, init, control, weights = weights, :
object 'Ccoxmart' not found
I am using latest version of R [3.4.0 (2017-04-21) -- "You Stupid Darkness"].
I have tried to consult the survival package manual for R and researched on the internet. I am grateful for any resource or solution you may recommend.
I can confirm this error. It's definitely something to do with the update from R 3.3.3 (Another Canoe) -> R 3.4.0 (You Stupid Darkness). All unit tests in my system working correctly on Friday, broken Monday.
In addition, I'm also having an issue with "Ccoxph_wtest" not being found. Must be a similar issue.
I'll start debugging later today and let you know what I find, but for now if you have to get back up and running, I'd suggest reverting to R v3.3.3 (Another Canoe). I have rerun all my unit tests using v3.3.3 and all is fine.
Here is the sessionInfo()
:
R version 3.3.3 (2017-03-06)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 16.04.2 LTS
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets base
R version 3.4.0 (2017-04-21)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 16.04.2 LTS
Matrix products: default
BLAS: /usr/lib/atlas-base/atlas/libblas.so.3.0
LAPACK: /usr/lib/atlas-base/atlas/liblapack.so.3.0
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets base
loaded via a namespace (and not attached):
[1] compiler_3.4.0
My solution was to re-install the survival package. Just install it right on top of the original. install.packages("survival")
.