Plot hydrograph separation — gr_plot

The function plots river hydrograph by filling the different flow types using colors. Matrix layouts can be used if multiple plots are needed. Temperature and precipitation can be overlaid.

Usage

gr_plot_sep(
  df,
  years = NULL,
  layout = as.matrix(1),
  pagebreak = FALSE,
  temp = FALSE,
  prec = FALSE,
  span = 5,
  print = TRUE
)

Arguments

df: data.frame of hydrograph separation as produced by gr_separate().
years: Integer vector of years to be plotted.
layout: matrix that encodes the order of plotting.
pagebreak: Logical. Whether to break page between plots (used by gr_report()). Defaults to FALSE.
temp: Boolean. Add temperature curve to the plot? Defaults to FALSE. If both temp = TRUE and prec = TRUE, then the axis is drawn for precipitation.
prec: Boolean. Add precipitation curve to the plot? Defaults to FALSE. If both temp = TRUE and prec = TRUE, then the axis is drawn for precipitation.
span: Integer number of days to accumulate precipitation for plotting.
print: Boolean. Print plot? Defaults to TRUE. Use FALSE if you want to tweak the plot aesthetics before plotting.

Value

list of ggplot2 objects, one for each year, representing the hydrograph separation

Examples

library(grwat)

data(spas) # example Spas-Zagorye data is included with grwat package

# separate
sep = gr_separate(spas, params = gr_get_params(reg = 'center'))
#> grwat: data frame is correct
#> grwat: parameters list and types are OK

# One year
gr_plot_sep(sep, 1978) 


# Two years
gr_plot_sep(sep, c(1978, 1989)) 



# Two years in a matrix layout
gr_plot_sep(sep, 1988:1989, layout = matrix(1:2, nrow = 2, byrow = TRUE)) 


# Add temperature and precipitation
gr_plot_sep(sep, 1991, temp = TRUE, prec = TRUE)