the name of the file which the data are to be read from. If it does not contain an _absolute_ path, the file name is _relative_ to the current working directory, 'getwd()'. Tilde-expansion is performed where supported.

Type of results that have to be read. It must be one of the following values:
-) "Q" : only results related to water quantity are read (first 8 columns): c("RCH", "GIS", "MON", "DrAREAkm2", "FLOW_INcms", "FLOW_OUTcms", "EVAPcms", "TLOSScms")
-) "Q+Sed" : only results related to water quantity AND sediments are read (first 11 columns): The previously mentioned 8 along with c("SED_INtons", "SED_OUTtons", "SEDCONCmg/kg")
-) "Q+Sed+WQ": all the columns of the ‘output.rch’ are read

OPTIONAL. Integer with the number of the reach for wich the results will be provided.
If this argument is not provided, the results will be given for all the reaches in ‘output.rch’

OPTIONAL. character with the column name in file that stores the results that the user wants to convert into a zoo object

Time step used for the simulation that created the ‘output.rch’ file.
It must be one of the following values: c("daily", "monthly", "annual"),

OPTIONAL, only used when rchID is provided AND it is a unique number.
character with the starting date for the results that are stored in file, which is used to provide a zoo object as output.

OPTIONAL, only used when rchID is provided AND it is a unique number.
character with the ending date for the results that are stored in file, which is used to provide a zoo object as output.

character, with the format used to define Date.Ini, Date.Fin. See 'format' in 'as.Date'.

logical; if TRUE, progress messages are printed