Create Stiff plot
Arguments
- d
AquaChem formatted dataset
- ems_id
Ids to plot if dataset includes more than one
- colour
Whether to add colour by ems_id
- legend
Whether to show the legend
- valid
Logical. Keep only valid data (charge balances <=10)
- with_Alk
Logical. Whether to use
Meas_Alk_meq
forHCO3_meq
if missing. Default TRUE. Matches behaviour ofwater_type()
.