BaseflowSeparation: no visible global function definition for
  ‘quantile’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/BaseflowSeparation.R:8)
SWAT2005: no visible global function definition for ‘read.fortran’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/SWAT2005.R:16)
alter_files: no visible global function definition for ‘read.fortran’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/alter_files.R:22)
build_gsod_forcing_data: no visible global function definition for
  ‘na.omit’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/build_gsod_forcing_data.R:33)
get_cfsr_latlon: no visible global function definition for
  ‘download.file’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/get_cfsr_latlon.R:10)
get_cfsr_latlon: no visible global function definition for ‘read.csv’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/get_cfsr_latlon.R:11)
get_gsod_stn: no visible global function definition for ‘read.csv’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/get_gsod_stn.R:22-23)
get_gsod_stn: no visible global function definition for ‘download.file’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/get_gsod_stn.R:44)
get_usgs_gage: no visible global function definition for ‘read.delim’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/get_usgs_gage.R:10)
get_usgs_gage: no visible global function definition for ‘read.delim’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/get_usgs_gage.R:25)
get_usgs_gage: no visible global function definition for ‘na.omit’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/get_usgs_gage.R:28)
hydrograph: no visible global function definition for ‘par’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:15)
hydrograph: no visible global function definition for ‘barplot’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:16-18)
hydrograph: no visible global function definition for ‘na.omit’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:16-18)
hydrograph: no visible global function definition for ‘axis’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:19)
hydrograph: no visible global function definition for ‘axis’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:20-26)
hydrograph: no visible global function definition for ‘na.omit’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:20-26)
hydrograph: no visible global function definition for ‘mtext’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:28)
hydrograph: no visible global function definition for ‘mtext’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:27-29)
hydrograph: no visible global function definition for ‘par’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:30)
hydrograph: no visible global function definition for ‘barplot’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:33-35)
hydrograph: no visible global function definition for ‘na.omit’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:33-35)
hydrograph: no visible global function definition for ‘par’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:36)
hydrograph: no visible global function definition for ‘plot’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:39-42)
hydrograph: no visible global function definition for ‘na.omit’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:39-42)
hydrograph: no visible global function definition for ‘mtext’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:45)
hydrograph: no visible global function definition for ‘mtext’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:47)
hydrograph: no visible global function definition for ‘mtext’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:44-48)
hydrograph: no visible global function definition for ‘lines’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:49-50)
hydrograph: no visible global function definition for ‘lines’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:52-53)
hydrograph: no visible global function definition for ‘lines’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:56-57)
hydrograph: no visible global function definition for ‘axis’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:59-61)
hydrograph: no visible global function definition for ‘axis’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/hydrograph.R:63)
swat_objective_function: no visible global function definition for
  ‘read.fortran’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/swat_objective_function.R:11)
swat_objective_function: no visible global function definition for
  ‘plot’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/swat_objective_function.R:25)
swat_objective_function: no visible global function definition for
  ‘lines’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/swat_objective_function.R:26)
swat_objective_function_rch: no visible global function definition for
  ‘runif’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/swat_objective_function_rch.R:5)
swat_objective_function_rch: no visible global function definition for
  ‘read.fortran’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/swat_objective_function_rch.R:16)
testSWAT2005 : runSWAT2005: no visible global function definition for
  ‘read.fortran’
  (/tmp/RtmpoYA8jP/R.INSTALL32494e3be868/EcoHydRology/R/testSWAT2005.R:23-24)
Undefined global functions or variables:
  axis barplot download.file lines mtext na.omit par plot quantile
  read.csv read.delim read.fortran runif
Consider adding
  importFrom("graphics", "axis", "barplot", "lines", "mtext", "par",
             "plot")
  importFrom("stats", "na.omit", "quantile", "runif")
  importFrom("utils", "download.file", "read.csv", "read.delim",
             "read.fortran")
to your NAMESPACE file.