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Last edited Apr 6, 2025

Created on Apr 6, 2025

This bar chart displays the populations of the top 20 countries in 2010, sorted by country name along the vertical axis. The horizontal bars use a linear scale to represent population values, with tick labels formatted in billions using d3.format. The visualization is built with React and renders SVG elements, pulling data from a remote CSV file via d3.csv. Axes are constructed using custom components that map scales to SVG lines and text, while rectangular marks include native tooltips showing the formatted population value.

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This bar chart displays the top 20 countries by population in 2010, with countries listed on the y-axis and population on the x-axis. The visualization uses React to render SVG elements, with D3 v5's `scaleBand` and `scaleLinear` for axis scaling. The `Marks.js` component creates the orange bars, while `AxisBottom.js` and `AxisLeft.js` generate the axes. Data is loaded asynchronously from a CSV file using D3's `csv` function, and hover effects show precise population values via SVG `<title>` tooltips.

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This horizontal bar chart displays the top 20 countries by 2010 population, with country names on the y-axis and population values on the x-axis. The visualization is built with React and D3 v5, using `scaleBand` and `scaleLinear` for positioning and `csv` to load data from a GitHub-hosted CSV file. SVG rectangles represent each country, with tooltips showing formatted population values via D3’s `format` function. Axes are custom-rendered components, and the data is processed by converting the 2010 values from thousands to raw numbers before slicing the dataset.

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This visualization displays the populations of 20 countries in 2010 as horizontal bars sorted along a categorical y-axis. Built with React and D3.v5, it uses `scaleBand` and `scaleLinear` to map countries and population values, rendering SVG rectangles with tooltips. Axis components generate custom ticks, with bottom tick labels formatted using `d3.format` to abbreviate large numbers (e.g., “1.2B”). Data is loaded asynchronously from a CSV file using D3’s `csv` function.

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This horizontal bar chart displays the populations of twenty countries in 2010, sorted by country name along the vertical axis with population magnitude encoded by bar length on the horizontal axis. The visualization is built with React and D3 v5, using `scaleBand` for the categorical y-axis, `scaleLinear` for the continuous x-axis, and SVG `<rect>` elements for the bars. Population values are formatted using D3's `format` function to abbreviate large numbers with suffixes like "B" for billions. Data is loaded asynchronously from a remote CSV file via D3's `csv` parser.

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This bar chart displays the population of the top 20 countries in 2020, with countries listed on the vertical axis and population values on the horizontal axis. The visualization uses React components to render SVG elements, with D3’s `scaleBand` and `scaleLinear` mapping data to positions. Each bar’s width reflects the population value, and hovering reveals a tooltip via the SVG `<title>` element. Data is loaded asynchronously from a GitHub-hosted CSV using D3’s `csv` function, formatted with `format('.2s')` to abbreviate large numbers. The chart includes custom axis components for bottom and left ticks.

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This bar chart displays the 2020 population estimates for the top 30 countries, using a horizontal layout with country names on the y-axis and population values on the x-axis. The visualization is built with React and D3 v5, leveraging `scaleBand` and `scaleLinear` for scales, with SVG rectangles as marks. Data is loaded from a remote CSV file via `d3.csv`, and the x-axis labels are formatted using `d3.format` to abbreviate large numbers, converting gigabytes notation to billions for readability.

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A horizontal bar chart displays the populations of 20 countries in 2010, ranked along the y-axis with population values on the x-axis. Built with React and D3 v5, the visualization uses `scaleBand` and `scaleLinear` to position bars, while custom React components `AxisBottom`, `AxisLeft`, and `Marks` render axes and rectangles. Data is loaded via `d3.csv` from a GitHub gist, formatted with `d3.format`, and styled with green fills and blue tick lines.

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This interactive bar chart displays the population of 20 countries in 2010, with each country listed on the vertical axis and its population shown as a horizontal bar length. The visualization is built using React and D3 version 5, leveraging `scaleBand`, `scaleLinear`, and the `csv` loader to fetch data from a GitHub URL. SVG rectangles represent the bars, with tooltips formatted using D3's `format` function to abbreviate large numbers (e.g., '1.2B'). Axis components are custom React elements, and the chart is rendered entirely as SVG within a React component.

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