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Question4_Bubble chart

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Jjayanthbalina@gmail.com
Last edited Apr 5, 2024
Created on Apr 3, 2024

This bubble chart visualizes the correlation between GDP per capita, life expectancy, and population-area ratio for 20 countries. Each circle’s position maps GDP and life expectancy, while its radius encodes population density, with color distinguishing nations. Data is loaded via `d3.csv` from `bubblechart.csv`. The visualization uses `d3.scaleLinear` for axes and size, `d3.scaleOrdinal` with `d3.schemeCategory10` for colors, and SVG circles with interactive tooltips on mouseover. A legend identifies each country.

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Question4

This bubble chart visualizes the correlation between GDP per capita, life expectancy, and population area ratio across 20 countries, with each bubble’s size encoding population density and color identifying the country. The chart uses d3.csv() to load data from bubblechart.csv and renders circles via d3.scaleLinear for axes and bubble sizing, with a d3.scaleOrdinal and d3.schemeCategory10 for color mapping. Interactive tooltips are implemented with D3 event handlers (mouseover, mousemove, mouseleave) that display country details, while a static legend lists all countries beside color-coded dots.

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Activity-6_Question4

This bubble chart shows the correlation between GDP per capita, life expectancy, and population area ratio across 20 countries. Each circle’s position encodes GDP and life expectancy, while its size represents population density, with color distinguishing nations. A tooltip reveals exact values on hover. Built with D3 v7, it uses `d3.scaleLinear` for axes and bubble sizing, `d3.scaleOrdinal` with `d3.schemeCategory10` for colors, and SVG circles with mouse event handlers for interactivity. Data comes from `bubblechart.csv`, rendered with standard SVG elements and a categorical legend.

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This bubble chart visualizes the correlation between GDP per capita, life expectancy, and population area ratio across 20 countries. Each circle’s position encodes GDP per capita on the x-axis and life expectancy on the y-axis, while its size reflects population density. The code uses d3.csv to load data, d3.scaleLinear for axes and bubble sizing, and d3.scaleOrdinal with schemeCategory10 for country colors. Interactive tooltips appear on mouseover, and a legend is built with SVG circles and text labels.

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