[D3] Create Labels from Non-numeric Data with Ordinal Scales in D3 v4
When your data contains discrete, non-numeric property values that you need to format or convert before displaying, d3.scaleOrdinal() is the API you need. Maybe you need to convert a “pass”/”fail” field to “green”/”red” for coloring your bubble chart? This lesson shows you exactly what to do.
function scaleOrdinal(){
var ordinalScale = d3.scaleOrdinal()
.domain(['poor', 'good', 'great'])
.range(['red', 'white', 'green']);
console.log(ordinalScale('good'));
console.log(ordinalScale('great'));
console.log(ordinalScale('poor'));
}
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