pRecipe (version 3.0.1-3)

plot_heatmap: Heatmap ggplot

Description

Convenient and aesthetic visualization of data in a heatmap.

Usage

plot_heatmap(x, unit = "mm")
# S4 method for Raster
plot_heatmap(x, unit = "mm")
# S4 method for data.table
plot_heatmap(x, unit = "mm")
# S4 method for character
plot_heatmap(x, unit = "mm")

Value

ggplot object

Arguments

x

Raster* object; data.table (see details); filename (character, see details)

unit

character (see details)

Details

If `x` is a data.table, its columns should be named: "lon", "lat", "date", and "value"

If `x` is a filename, it should point to a *.nc file.

`unit` is a character string describing the unit of measurement to be used for the axis title

Examples

if (FALSE) {
download_data("gldas-vic", tempdir(), timestep = "yearly")
r <- raster::brick(paste0(tempdir(),
"/gldas-vic_tp_mm_land_194801_201412_025_yearly.nc"))
s <- plot_heatmap(r)
}