gr_plot_vars: Plot interannual hydrograph variable changes
In tsamsonov/grwat: River Hydrograph Separation and Analysis

gr_plot_vars

R Documentation

Plot interannual hydrograph variable changes

Description

This function plots the hydrograph separation variables produced by gr_summarize(). Different background fill colors and line types are used to differentiate seasons and variable types.

Usage

gr_plot_vars(
  df,
  ...,
  tests = NULL,
  exclude = NULL,
  smooth = TRUE,
  layout = as.matrix(1),
  pagebreak = FALSE,
  print = TRUE
)

Arguments

`df`	`data.frame` of hydrograph and meteorological variables produced by `gr_summarize()`.
`...`	Quoted sequence of variable names.
`tests`	`list` of tests for the same variables (generated by `gr_test_vars()` function). If tests are specified, then they are added to the plot.
`exclude`	Integer vector of years to be excluded from plotting.
`smooth`	Logical. If `TRUE` then local smoothing regression is plotted. Defaults to `TRUE`.
`layout`	`matrix` that encodes the order of plotting.
`pagebreak`	Logical. Whether to break page between plots (`gr_report()`). Defaults to `FALSE`.
`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 variable, representing its interannual changes

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'))

# summarize from 1965 to 1990
vars = gr_summarize(sep, 1965, 1990)

# plot one selected variable
gr_plot_vars(vars, Qygr) 

# plot two variables sequentially
gr_plot_vars(vars, D10w1, Wsprngr)

# four variables in matrix layout with tests calculated on the fly
gr_plot_vars(vars, Qspmax, Qygr, D10w1, Wsprngr,
             layout = matrix(1:4, nrow = 2, byrow = TRUE),
             tests = TRUE)

tsamsonov/grwat documentation built on Feb. 10, 2024, 5:55 p.m.