Running as.quitte(c("onefile.csv", "twofile.csv")) works, but raises a warning:
Warning message:
In if (file.exists(x) & grepl("\\.(mif|csv|xlsx)$", x)) return(as.quitte(read.quitte(x), :
the condition has length > 1 and only the first element will be used
Running
as.quitte(c("onefile.csv", "twofile.csv"))
works, but raises a warning:After this PR, no warning is raised anymore.