Visualize a Commodity object

Plots the commodity's emission factors (@emis) as bars — one bar per emission species, with the y-axis in the emission unit (e.g. kt/GWh). Additional commodity objects can be passed via ... to compare emission intensities side by side (e.g. autoplot(COA, OIL, GAS)). Commodities with no emission factors produce a message and return NULL invisibly.

Usage

# S3 method for class 'commodity'
autoplot(object, ...)

Arguments

object

A commodity object.

...

Optional further commodity objects to include in the comparison.

palette

Viridis color option for the emission-species fill scale.

Value

A ggplot object, or NULL (invisibly) if there is nothing to plot.

Examples

if (FALSE) { # \dontrun{
coa <- newCommodity("COA", emis = data.frame(comm = "CO2", unit = "kt/GWh", emis = 0.33))
autoplot(coa)
} # }