Loading and parsing CSV data

Loading and Parsing CSV Data

This example demonstrates how to load and parse a remote CSV file, displaying summary statistics about the dataset in large text. It fetches named CSS color data from a GitHub gist using `d3.csv`, then computes and shows the file size in kilobytes, the total number of rows, and the column count. The code uses D3 v7’s `d3.csv` promise API and `d3.csvFormat` to measure the parsed data’s size, appending the results to a `<pre>` element with DOM methods. The visualization is purely textual, highlighting basic data inspection after asynchronous loading.

GGabriel

Loading and Parsing CSV Data

This example demonstrates how to load and parse a CSV file using D3’s `d3.csv` method, displaying summary statistics about the dataset in a large `<pre>` element. It fetches a remote CSV of CSS named colors from a GitHub gist, then reports the file size in kilobytes, the number of rows, and the number of columns. The code uses `d3.csv` to fetch and parse the data, `d3.csvFormat` to measure the formatted output, and `d3.csv`’s built-in promise handling to access the parsed array and its columns property.

CCees Klap

Loading and Parsing CSV Data

CCees Klap

Loading and Parsing CSV Data

This example demonstrates the basics of loading and parsing CSV data with D3.js. It fetches a remote CSV file containing CSS named colors and displays three summary statistics in a large-text format: the file size in kilobytes, the number of data rows, and the number of columns. Using `d3.csv` with a promise chain, the code accesses the parsed data object and calls `d3.csvFormat` to measure the raw string length. The interface is a simple `<pre>` element updated via `textContent`, with commented alternatives using `fetch` and `d3.csvParse` for comparison.

FFrederick O'Brien

Loading and Parsing CSV Data

This example demonstrates how to load and parse CSV data using D3.js v6. It fetches a remote CSV file containing CSS named colors via `d3.csv`, then displays a summary of the parsed dataset: the file size in kilobytes, row count, and column count. The result is rendered as large text inside an HTML `<pre>` element. The data comes from a GitHub gist, and the code also includes commented-out alternatives using the Fetch API and `d3.csvParse`.

LLicheng Zhang

Loading and parsing csv data

This example demonstrates how to load and parse CSV data using D3.js, displaying a summary of the dataset in a large preformatted text element. The visualization shows the number of rows, columns, and file size in kilobytes for a dataset of CSS named colors fetched from a GitHub gist. The code uses the `d3.csv` method to asynchronously fetch and parse the remote CSV file, then counts rows via `data.length`, columns via `data.columns.length`, and computes the approximate file size with `d3.csvFormat` and `Math.round`. Alternative fetching with `fetch` and `d3.csvParse` appears in a commented section.

Bbjfmbeck

Loading and Parsing CSV data

This example demonstrates the basics of loading remote CSV data in D3.js. It displays a summary message showing the file size in kilobytes, the row count, and the number of columns. The code uses the `fetch` API via `d3.csv` to retrieve a CSV file containing CSS named colors from a GitHub gist, then parses it and formats the summary with `d3.csvFormat` and `d3.csvFormat`'s length property. The result is rendered as text inside a `<pre>` element.

AAshford

Loading and Parsing CSV Data

This example demonstrates how to load, parse, and summarize a CSV file using D3.js (v5). It fetches a remote CSV file containing CSS named colors from a GitHub gist via the `d3.csv` method, then displays the formatted data’s size in kilobytes, the number of rows, and the number of columns in a large `<pre>` element. The code also separately fetches the raw text using the `fetch` API and calls `d3.csvParse` to parse it, though that parsed result is not displayed. The visualization serves purely as a text-based output of dataset statistics, highlighting D3’s CSV parsing and formatting utilities.

WWeiping