Published
Edited
May 25, 2020
2 stars
data = {
const timeParser = d3.timeParse("%d %b %Y");
const csvString = await FileAttachment("Cells in Journal_ Getting Started with Data Viz - Journal cells - 25 May 2020.csv").text();
let accumulator = 0;
const rowConversionFunction = ({
"Title": title,
"URL": url,
"Number of cells": y,
"Date": x
}) => {
return {
title,
url,
x: timeParser(x),
y: +y,
yCumulative: accumulator = accumulator + +y // This!
}
};
const dataObjectTarget = d3.csvParse(csvString, rowConversionFunction);
const extraPropertiesSource = {x: "Date →", y: "↑ Cells"};
return Object.assign(dataObjectTarget, extraPropertiesSource);
}
x = d3.scaleUtc()
.domain(d3.extent(data, d => d.x))
.range([margin.left, width - margin.right]);
xAxis = g => g
.attr("transform", `translate(0,${height - margin.bottom})`)
.call(d3.axisBottom(x).ticks(width / 80).tickSizeOuter(0))
y = d3.scaleLinear()
.domain([0, d3.max(data, d => d.yCumulative)]).nice()
.range([height - margin.bottom, margin.top]);
yAxis = g => g
.attr("transform", `translate(${margin.left},0)`)
.call(d3.axisLeft(y))
.call(g => g.select(".domain").remove())
.call(g => g.select(".tick:last-of-type text").clone()
.attr("x", 3)
.attr("text-anchor", "start")
.attr("font-weight", "bold")
.text(data.y))
area = d3.area()
.curve(curve)
.x(d => x(d.x))
.y0(y(0))
.y1(d => y(d.yCumulative));
curve = d3.curveLinear;
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