Building file name strings

Discussion created by ipmusto99 on Mar 15, 2011
Latest reply on Mar 16, 2011 by ipmusto99
I have a model that imports rainfall  and evaporation grids for each week in the year. As the file location is variable I am trying to create the file location and name by concatenating variables:

"%evap dir%\%evapn%%year%%week value%".

Unfortunately the substiitution is not occuring and files (named rain200922, etc) are not being found.

Any ideas