R help - May 2017 - problem with

Hello everybody

 I am trying to use system.file but it returns not file found

what I have done is
> sample <- system.file("results.xlsx","estdata",
package "readxl",mustWork = TRUE)
Error in system.file("results.xlsx", "estdata", package =
"readxl",
mustWork = TRUE) :
  no file found

i have checked the path was correct and the file exists with

FILES <- file.path("results.xlsx")
present <- file.exists(FILES)

and it returned a true values. Anyone can tell me which can be the problem ?

thanks


Pau Marc Mu?oz Torres
skype: pau_marc
http://www.linkedin.com/in/paumarc
http://www.researchgate.net/profile/Pau_Marc_Torres3/info/

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