Introduction to ggRunoff

Yuxuan Xie

2025-01-07

Let’s get start with ggRunoff.

Load R package and data

library(ggplot2)
#> Error in get(paste0(generic, ".", class), envir = get_method_env()) : 
#>   object 'type_sum.accel' not found
library(ggRunoff)
#> 
#> Attaching package: 'ggRunoff'
#> The following object is masked from 'package:base':
#> 
#>     %||%

data("runoff_data", package = "ggRunoff")
# add a flood type
runoff_data$flood_type = c(rep('flood_1', 400), rep('flood_2', 344))

head(runoff_data)
#>                  time prcp        Q flood_type
#> 1 2010-05-01 00:00:00    0 73.32857    flood_1
#> 2 2010-05-01 01:00:00    0 72.77857    flood_1
#> 3 2010-05-01 02:00:00    0 72.88571    flood_1
#> 4 2010-05-01 03:00:00    0 73.31429    flood_1
#> 5 2010-05-01 04:00:00    0 69.79286    flood_1
#> 6 2010-05-01 05:00:00    0 66.16429    flood_1

Visualization

set_coef = 15

ggplot(runoff_data, aes(x=time, Q)) +
  geom_rainfallRunoff(
    aes(runoff=Q, prcp=prcp, color=flood_type), 
    coef=set_coef, show.legend = F
  ) +
  scale_y_precipitation(sec.name = 'Precipitation (mm)', coef = set_coef) +
  facet_wrap(~flood_type, scales = 'free')