checks if example filename is existing and if not tries to download it.
     
    
    getExamplePath(filename = "Example_DETha98.txt", 
    isTryDownload = FALSE, exampleDir = getREddyProcExampleDir(), 
    remoteDir = "")
 
     
    
    Arguments
    
- filename
 
the name of the example file
 
  - isTryDownload
 
scalar logical whether to try
downloading the file to package or tmp directory.
Because of CRAN checks, need to explicitly set to TRUE
 
  - exampleDir
 
directory where examples are
looked up and downloaded to
 
  - remoteDir
 
the URL do download from
 
 
    
    Details
    Example input text data files are not distributed with the package, because
it exceeds allowed package size.
Rather, the example files will be downloaded when required from github
by this function.
The remoteDir (github) must be reachable, and the writing directory
must be writeable.
     
    
    Value
    the full path name to the example data or if not available
an zero-length character.
Allows to check for if (length(getExamplePath()) ) ... 
     
    
    Author
    Department for Biogeochemical Integration at MPI-BGC, Jena, Germany <REddyProc-help@bgc-jena.mpg.de> [cph], Thomas Wutzler <twutz@bgc-jena.mpg.de> [aut, cre], Markus Reichstein <mreichstein@bgc-jena.mpg.de> [aut], Antje Maria Moffat <antje.moffat@bgc.mpg.de> [aut, trl], Olaf Menzer <omenzer@bgc-jena.mpg.de> [ctb], Mirco Migliavacca <mmiglia@bgc-jena.mpg.de> [aut], Kerstin Sickel <ksickel@bgc-jena.mpg.de> [ctb, trl], Ladislav <U+0160>igut <sigut.l@czechglobe.cz> [ctb]