Output functions for the SWAT hydrological model

This function reads the file with the simulated streamflows for the parameter sets obtained with SWAT-CUP

1	read_qout(file, ua.algorithm, nsim, nobs, verbose=TRUE)

`file`	character with the name of the file which the data are to be read from. Valid values are in `c('95ppu.sf2', '95ppu.out')`. If it does not contain an absolute path, the file name is relative to the current working directory, getwd()
`ua.algorithm`	OPTIONAL, only required when `file` is missing. character, indicating the SWAT-CUP algorithm that created `file`. Valid values are: -) `GLUE` : `file` is set to ‘modelres.out’, with the streamflows of ALL the parameter sets, stored by rows -) `SUFI2`: `file` is set to ‘q\_1.out’, with the streamflows of ALL the parameter sets, stored by rows -) `PSO` : `file` is set to ‘q1\_beh.out’, with the streamflows corresponding to the BEHAVIOURAL parameter sets only, stored by rows
`nsim`	OPTIONAL. Only required when `ua.algorithm` is in `'GLUE', 'SUFI2', 'PSO'` numeric, with the number of simulations specified in the file ‘par_inf.sf2’, located in teh folder ‘SUFI2.IN’ (e.g.: Number_of_LH_sims=2000)
`nobs`	OPTIONAL. Only required when `ua.algorithm` is in `'SUFI2', 'PSO'` number of observation specified in the file ‘observed.sf2’, located in the folder ‘SUFI2.IN’ (e.g., NO_Data= 6935)
`verbose`	logical; if TRUE, progress messages are printed