Plot Trait Correlation Matrix — fb_plot_trait

This functions outputs a ggplot2 figure that outputs a trait correlation matrix. It only works on numerical traits and will output messages if non-numerical traits are found and errors if no numerical traits are found. Internally it uses the stats::cor() function and only works on complete observation (it removes any row that contains any NA). Use the ... argument to pass options to the cor() function.

Usage

fb_plot_trait_correlation(species_traits, species_categories = NULL, ...)

Arguments

species_traits: a data.frame with species in rows and traits as columns. NOTE: The first column should be named "species" and contain species names. The other columns should be named according to trait names.
species_categories: (default = NULL) 2-columns data.frame giving species categories, with the first column describing the species name, and the second column giving their corresponding categories
...: Additional options passed to stats::cor()

Value

a ggplot object

Examples

fb_plot_trait_correlation(species_traits)


# Plot Spearman's correlation
fb_plot_trait_correlation(species_traits, method = "spearman")