A7 Heatmap Time Series
This heatmap visualizes the daily opening prices of five major tech companies—Oracle, Apple, Nvidia, Avago, and Microsoft—throughout 2024. Data from Yahoo Finance is encoded using a sequential color scale (interpolateGnBu) mapped to stock price values, with white spaces indicating missing days in the CSV. The x-axis uses a time scale for dates, while the y-axis uses an ordinal band scale for companies. Rows represent companies, columns represent trading days, and color intensity encodes open price. The visualization includes labeled axes, a color legend, and hover interactions on rectangles, with the color scale ranging from light blue for lower prices to dark blue for higher prices.
AI-generated descriptionData is from and edited to only include open prices from: https://finance.yahoo.com/ The white spaces are days that were not recorded in the csv file