setupYears | R Documentation |
This function aggregates the results stored on a daily basis in the Daily data frame and stores the average values of these in the new data frame called AnnualResults. Note that the flux values are rates (kg/day) and not a mass (kg). The "annual values" can be a full 12 months, or they can be shorter. See manual to understand paLong and paStart arguments. The simplest case, a Water Year (October through September), would have paLong=12, and paStart=10. A calendar year would be paLong=12 and paStart=1. A winter season of Dec, Jan, Feb would be paLong=3 and paStart=12
setupYears(localDaily, paLong = 12, paStart = 10)
localDaily |
data frame containing the daily values, default is Daily |
paLong |
numeric integer specifying the length of the period of analysis, in months, 1<=paLong<=12, default is 12 |
paStart |
numeric integer specifying the starting month for the period of analysis, 1<=paStart<=12, default is 10 |
A data frame 'AnnualResults' of numeric values with the following columns
Name | Description |
DecYear | Middle of the period in decimal years |
Q | Mean discharge, in m^3/s |
Conc | Estimated mean concentration, in mg/L |
Flux | Estimated mean flux, in kg/day |
FNConc | Flow-normalized concentration, in mg/L |
FNFlux | Flow-normalized flux, in kg/day |
GenConc | Generalized mean concentration, in mg/L. This column is only returned if the WRTDSKalman function was run, which gives the eList$Daily data frame a column "GenConc". |
GenFlux | Generalized mean flux, in kg/day. This column is only returned if the WRTDSKalman function was run, which gives the eList$Daily data frame a column "GenFlux". |
PeriodLong | Length of period of analysis (paLong), in months |
PeriodStart | Starting month of period of analysis (paStart), in months (1 = January) |
eList <- Choptank_eList
Daily <- getDaily(eList)
AnnualResults <- setupYears(Daily, 4, 10)
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