Error in loadNamespace(x)

[ufys1994]

_Problems when running analysis for Repertoire overlap,

Below is my actual codes ran:_

pr2 <- pubRepFilter(pr, immdata$meta, c(Status = "MS"))
Error in loadNamespace(x) : there is no package called ‘assertthat’

I did also try run the sample through the help document:

Examples for 'immunarch::pubRepFilter'
Filter out clonotypes from public repertoires
Aliases: pubRepFilter publicRepertoireFilter

Keywords:

** Examples

data(immdata)
immdata$data <- lapply(immdata$data, head, 2000)
pr <- pubRep(immdata$data, .verbose = FALSE)
pr1 <- pubRepFilter(pr, immdata$meta, .by = c(Status = "MS"))
Error in loadNamespace(x): there is no package called 'assertthat'

I believe something is wrong in the source code?

Thanks,