make traffic light graphs

[buscandoaverroes]

Incorporate cross-country wage comparison data to make a traffic light/heatmap visual a la https://plotly.com/r/heatmaps/

[buscandoaverroes]

we need to figure out a way to make missing values turn grey or something

[buscandoaverroes]

and sort to have the 'top scoring' nations at the top

[buscandoaverroes]

and fix array of axes titles

[buscandoaverroes]

oh, idea: create a correlation matrix that shows correlation of overall index sum score and key variables.

[buscandoaverroes]

edits to make:

• keep the numbers as raw, not scaled
• consider using quantiles in color way