Namespace issue: Error in ranger(formula = reformulate(covariables, response = vv), data = data_imp, : could not find function "ranger"

[Deleetdk]

> outForest(atmos_cph_num)

Outlier identification by random forests

  Variables to check:		UVIEF, UVIEFerr, UVDEF, UVDEFerr, UVDVF, UVDVFerr, UVDDF, UVDDFerr, ozone
  Variables used to check:	UVIEF, UVIEFerr, UVDEF, UVDEFerr, UVDVF, UVDVFerr, UVDDF, UVDDFerr, ozone

  Checking: UVIEF  Error in ranger(formula = reformulate(covariables, response = vv), data = data_imp,  : 
  could not find function "ranger"

atmos_cph_num is just some arbitrary dataset. The error here is that https://github.com/mayer79/outForest/blob/master/R/outForest.R#L139 is missing namespace.

[mayer79]

What version of the ranger package are you using?

[mayer79]

Not enough info.

[Deleetdk]

Error is unrelated to package versions, you just forgot the namespace on the foreign functions. It's best practice to include these always.

[mayer79]

I see. One question: did you install the package from CRAN? There, "ranger" seems to be in the namespace file, but maybe I messed up that file on github...

[mayer79]

I tried to fix it, thanks for reporting!

[mayer79]

Actually the problem seems to be a wrong install instruction in the readme. Here is the right one using a subdir:

library(devtools)
install_github("mayer79/outForest", subdir = "release/outforest")

Thanks again for reporting.

[Deleetdk]

You just need to use e.g. ranger::ranger() in your source code. Sometimes it works without, and sometimes it doesn't. Best just to use it always when writing packages.