attachment.text()//영상이랑 다른 것들이 있다는 가정하에-데이터 형태만 보는 거라면 굳이 넣을 필요 없지.
d3=require('d3')
text=FileAttachment("yakimacovid.csv").text();//이렇게 변경해 봄
data=d3.csvParse(text,d3.autoType)
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.