join_volume: Join volume information
In mkoohafkan/rremat: Russian River Estuary data collected by the Largier Lab

Attach water volume information from estuary bathymetry to gridded data.

join_volume(d, volumes, cellvol, joincols = c("elev", "dist", "wse"),
  countcols = c("count", "count.littoral", "count.limnetic",
  "count.sublimnetic", "count.epibenthic", "count.profundal"),
  volcols = c("volume.total", "volume.littoral", "volume.limnetic",
  "volume.sublimnetic", "volume.epibenthic", "volume.profundal"))

`d`	Dataframe containing data to have volume information attached to.
`volumes`	Dataframe containing cell counts. If `cellvol` is missing, must also containing the attribute "resolution" which is a dataframe or list with elements `xres`, `yres`, and `zres`.
`cellvol`	Numeric volume of cells desribed by `volumes`.
`joincols`	Columns to use when joining `volumes` to `d`.
`countcol`	Column name containing cell count data in `volumes`.
`volcol`	The name of the column containing volume data to be added to `d`.