file attach: https://observablehq.com/@observablehq/file-attachments?collection=@observablehq/working-with-data

this uses observale built-in function: https://github.com/observablehq/stdlib#file-attachments

the encapsulating function from https://observablehq.com/@d3/scatterplot other functions can be found in the collection https://observablehq.com/collection/@observablehq/visualization