plot_rose_image_only: Create stripped down image of directional rose ggplot object.

In jwbannister/offlakeRoses: Builds JPEG Map of Dust Roses at Offlake TEOM Stations

Description

Useful for greating image to be overlaid on map as grob.

Usage

plot_rose_image_only(data, value, dir, dirres = 22.5, valuemin = 0,
  valueseq, palette = "YlOrRd")

Arguments

data	Data frame.
value	Text string. Column name of value variable.
dir	Text string. Column name of direction variable.
dirres	Numeric. Rose paddle angle width.
valuemin	Numeric. Lower value limit. All rows with value < valuemin are removed from data.
valueseq	Numberic. Bin cutoffs for values.
palette	Text string. Name of ColorBrewer palette to use for value fill.
plot.label	Text string. Will be placed at center of rose.

Value

Returns the plot as a ggplot object. Paddles lengths (total and fill) are proportional to percentage of total.

jwbannister/offlakeRoses documentation built on May 20, 2019, 6:22 a.m.