Dataviz 2020_Ep51 - 42. Coronavirus Line Chart - React and D3 Axes

Dataviz 2020_Ep49 - 40. Corona virus Line Chart - Preliminary

This example shows a line chart tracking global cumulative COVID-19 deaths over time, with a horizontal marker line at three million deaths. The React component uses d3.scaleTime and d3.scaleLinear for axes, while d3.line generates the path from CSV data. Data originates from the Johns Hopkins CSSE COVID-19 time series, fetched via d3.csv and aggregated by summing daily country values in useData.js. The SVG rendering applies a thick black stroke via CSS, with a fixed viewport sized to the browser window.

Dataviz 2020_Ep52 - 43. Coronavirus Line Chart - Linear Y Axis

This visualization tracks global cumulative COVID-19 deaths over time as a single black line chart with a linear y-axis. The D3 line generator builds the path from daily date and death-total values processed from the CSSE COVID-19 time series dataset. React components render SVG axes with D3’s axisBottom and axisLeft, while scales use scaleTime and scaleLinear to map data to screen coordinates. Gridlines and tick marks provide reference points across the full chart area.

Dataviz 2020_Ep50 - 41. Corona virus Line Chart

This visualization tracks global cumulative COVID-19 deaths over time as a line chart, using a time scale for dates and a linear scale for death totals. It highlights the most recent date with a vertical marker labeled “Now” and a horizontal reference line at 3.5 million deaths. Built with React and D3 v6 (d3.scaleTime, d3.scaleLinear, d3.line), it renders to SVG and loads data from the CSSE COVID-19 time series CSV, aggregating daily death counts across all countries.

React + D3 axis (Coronavirus Deaths)

This example shows a line chart of cumulative global coronavirus deaths over time, drawn with D3 scales and a React-generated SVG. The chart highlights the most recent date with a vertical marker line labeled “now” and a horizontal reference line at 3,000,000 deaths. React components manage the SVG structure, while D3’s `scaleTime`, `scaleLinear`, and `line` generator compute positions and the path. Axes are rendered using `d3.axisBottom` within a React effect. Data comes from the CSSEGISandData COVID-19 time-series CSV, parsed with `d3.csv` and `timeParse`.

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Dataviz 2020_Ep52 - 44. Coronavirus Line Chart - Log Y Axis

This visualization shows the global cumulative death toll from COVID-19 over time, plotted on a logarithmic scale to reveal the exponential growth pattern. The line chart uses a time-based x-axis and a log-scaled y-axis, with the death totals aggregated from all countries. Built with React and D3 v6, it employs `scaleTime` and `scaleLog` for the axes, along with `line` and `axisBottom`/`axisLeft` for rendering. The data comes from the COVID-19 time series CSV maintained by CSSE at Johns Hopkins University.

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coronavirus Line Chart Practice

This example shows the global cumulative death toll from COVID-19 over time as a single black line chart, with horizontal and vertical marker lines highlighting the 10,000-death threshold and the latest date. Built with React and D3 v5, it uses `d3.csv` to load time-series data from the CSSE COVID-19 dataset, `scaleTime` and `scaleLinear` for axes, and `d3.line` to generate the path. The SVG is rendered directly via React components, while `d3.axisBottom` and refs are used to draw the x-axis.

AAmnaRizvi-S

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51) React + D3 Axes

This example shows the global cumulative death toll from the early COVID-19 pandemic as a time-series line chart, with horizontal and vertical marker lines highlighting the 10,000-death threshold and the most recent date. Built with React and D3 v5, it uses `d3.scaleTime`, `d3.scaleLinear`, and `d3.line` to generate an SVG path, while custom React components render the marker lines. D3’s `axisBottom` and `select` handle the gridlines and tick labels. Data is loaded as CSV from a Johns Hopkins repository and transformed with `d3.csv` and `timeParse`.

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