bubbleHeatmap - Produces 'bubbleHeatmap' Plots for Visualising Metabolomics Data

Plotting package based on the grid system, combining elements of a bubble plot and heatmap to conveniently display two numerical variables, (represented by color and size) grouped by categorical variables on the x and y axes. This is a useful alternative to a forest plot when the data can be grouped in two dimensions, such as predictors x outcomes. It has particular advantages for visualising the metabolic measures produced by the 'Nightingale Health' metabolomics platform, and templates are included for automatically generating figures from these datasets.