outdir/rtMod.out fails on Windows

[jonas-sk]

(another issue, sorry). When specifying an outdir on Windows 10, the command will fail in error.

cases_test.tree <- read_csv("cases_test.csv") %>% 
  preprocess(numeric2factor = TRUE) %>% 
  s.ADDTREE(outdir = "test")

results in:

Error in file(file, if (append) "a" else "w") : cannot open the connection

It is probably related to the handling of Windows filepaths (e.g. https://stackoverflow.com/questions/17156445/why-i-get-this-error-writing-data-to-a-file)

[egenn]

Unfortunately, I do not have a Windows machine to work on this.
You can add an extra line to save the model and any plots you want directly.