account for null data before adding it to the gsplot object (needs to be done in a more succinct way)
account for null data before adding it to the gsplot object (needs to be done in a more succinct way)

mhines-usgs/repgen,dpattermann-usgs/repgen,USGS-R/repgen,lindsaycarr/repgen,lindsaycarr/repgen,mhines-usgs/repgen,thongsav-usgs/repgen,zmoore-usgs/repgen,USGS-R/repgen,dpattermann-usgs/repgen,USGS-R/repgen,lindsaycarr/repgen,zmoore-usgs/repgen,thongsav-usgs/repgen,mhines-usgs/repgen,dpattermann-usgs/repgen,zmoore-usgs/repgen,thongsav-usgs/repgen