dv.24 - dressed-up bar chart

dv2020-ep24-viz24 - bar chart, stylized

This bar chart displays the top 9 most populous countries in 2019, using horizontal bars sorted by population size. Styled with a bright yellow background and red tick labels, the chart highlights the distribution of populations across nations. Built with React and D3 v5, the visualization uses `scaleBand` for the categorical y-axis and `scaleLinear` for the numeric x-axis, with data from the UN World Population Prospects 2019. SVG rendering includes custom axes and tooltips that format population values using D3’s `format` function.

91% match

dv.21 - basic bar chart

This example displays the top 20 most populous countries as horizontal bars, ranked by their 2020 population estimates from the United Nations World Population Prospects 2019 dataset. It renders an SVG bar chart using React for component structure and d3.scaleBand for the categorical y-axis, d3.scaleLinear for the numeric x-axis, and d3.csv for data loading. The chart intentionally has no axes or labels, using only rectangles whose widths encode population values.

91% match

dv.23 - refactored bar chart

This example shows the top 20 most populous countries as horizontal bars, with country names on the left axis and population values on the bottom axis. The React app loads CSV data from the UN World Population Prospects 2019, sorts by 2020 population, and renders SVG rectangles using d3.scaleBand for the y-axis and d3.scaleLinear for the x-axis. Axis labels and tick marks are generated by custom React components that use d3 scale methods to position text and lines. The chart updates automatically when the data loads asynchronously via d3.csv.

89% match

dv.22.2 - axes & labels w/ react & d3

This bar chart displays the 20 most populous countries, with populations from the United Nations World Population Prospects 2019 dataset. D3.js scales map country names to the y-axis and population values to the x-axis. React renders the SVG, with map methods generating axis ticks and labels. The chart uses `scaleBand` and `scaleLinear` from D3, and React's `useState` and `useEffect` for data loading and state management.

dv2020-ep22-viz22 - bar chart, axes

A horizontal bar chart displays the top five most populous countries in 2020, sorted in descending order. The visualization uses d3.csv to load UN World Population Prospects 2019 data, then applies d3.scaleBand for the categorical y-axis and d3.scaleLinear with d3.max for the quantitative x-axis. React manages the component state, while SVG renders the ticks, gridlines, text labels, and rectangles. The background is set to a light yellow-green, with margins positioning the plot area.

dv2020-ep21-viz20 - bar chart

A horizontal bar chart displays the 20 most populous countries in 2020, ranked in descending order by population. The visualization uses React to render SVG rectangles, with D3's `scaleBand` and `scaleLinear` mapping country names to y-coordinates and population values to bar widths. Data comes from the UN World Population Prospects 2019, loaded via D3's `csv` parser and sorted with `d3.descending`. The chart updates dynamically as React re-renders when the asynchronous data fetch completes.

Stylized Bar Chart

This stylized bar chart displays the top 10 most populous countries using data from the United Nations World Population Prospects 2019. Built with React and D3 v5, it renders bars as SVG rectangles positioned by a scaleBand and scaleLinear, with axis labels and tick formatting using d3.format. A native canvas element measures text width to position the axis label, while tooltips provided by SVG title elements reveal population values in billions.

Ddleese1

Bar Chart - React, D3

A bar chart displays the top 10 most populous countries in 2020, using horizontal bars sorted by population. The visualization is built with React components and D3 scales (`scaleBand`, `scaleLinear`), rendering SVG rectangles for marks and custom axis components. D3’s `csv` loader fetches United Nations World Population Prospects 2019 data, with population formatted in billions. Tooltips show exact values via SVG `<title>` elements, while axes and labels are styled with CSS.

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