plot_windrose: Wind rose plot

In clarelindeque/EasyWeatherR: Manipulate and Visualise Data from an EasyWeather Weather Station

Description

Plot a wind rose diagram, showing the relative frequency of winds coming from each point of the compass

Usage

plot_windrose(data, speed, direction, spdres = 2, dirres = 30,
  spdmin = 2, spdmax = 20, spdseq = NULL, palette = "YlGnBu",
  countmax = NA, printplot = TRUE)

Arguments

data	A data frame containing wind speed and direction in degrees
speed	The name of the column in the data frame containing wind speed
direction	The name of the column in the data frame containing wind direction
spdres	Resolution of wind speed bins
dirres	Resolution of wind direction bins
spdmin	Maximum wind speed to use in binning
spdmax	Minimum wind speed to use in binning
palette	Palette to use in plotting
countmax	Maximum axis limit for plotting

Details

Radar plot code modified from answers to this Stackoverflow question: https://stackoverflow.com/questions/9614433/creating-radar-chart-a-k-a-star-plot-spider-plot-using-ggplot2-in-r/10820387

Value

A ggplot2 object containing the windrose plot

Examples

# Assuming EasyWeather data files called 2018.csv and 2019.csv are in local
# directory:
years <- c(2018,2019)
test_data <- merge_years(years)
p <- plot_windrose(test_data, "wind_km_h", "wind_direction_deg", dirres = 15)

clarelindeque/EasyWeatherR documentation built on May 14, 2019, 3:06 a.m.