This function calculates various performance metrics for a given simulation and observed data.
Usage
calculate_performance(
sim,
obs,
par_name = NULL,
perf_metrics = NULL,
period = NULL,
fn_summarize = "mean"
)
Arguments
- sim
Object from SWATrunR
- obs
Dataframe for the observed data with two columns: date and value.
- par_name
(optional) Character for name of the parameter set to be used. Default
par_name = NULL
, which select first variable in sim object. But if you have multiple parameter sets, you can use this argument to select the one you want to use. Example par_name = "flo_day" or par_name = no3_day_conc".- perf_metrics
(optional) Character vector with the names of the performance metrics to used in the rank_tot calculation. Default
perf_metrics = NULL
, which means that all performance metrics will be used in calculation. Other example could be perf_metrics = c("kge", "nse"), which means that only KGE and NSE will be used in calculation.- period
(optional) Character describing, which time interval to display. Default
period = NULL
, which mean not activated, other examples are "day", "week", "month", etc). See lubridate::floor_date for details.- fn_summarize
(optional) Function to recalculate to the specified time interval. Default
fn_summarize ="mean"
, other examples are "median", "sum". See dplyr::summarise for details.
Examples
if (FALSE) {
obj_tbl <- calculate_performance(sim = sim_flow, obs, "flo_day", c("kge", "nse"), "month", "sum")
}