1.0Go Chart 繁體中文https://www.go-chart.com/twcurtishttps://www.go-chart.com/tw/author/curtis/rich600338<blockquote class="wp-embedded-content" data-secret="poksn8YuT1"><a href="https://www.go-chart.com/tw/tutorial-stacked-line-charts/">Tutorial: Stacked Line Charts</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.go-chart.com/tw/tutorial-stacked-line-charts/embed/#?secret=poksn8YuT1" width="600" height="338" title="Tutorial: Stacked Line Charts — Go Chart 繁體中文" data-secret="poksn8YuT1" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> https://www.go-chart.com/tw/wp-content/uploads/sites/2/2024/10/img_671078775c38f.png598412Introduction Stacked line charts are a powerful way to visualize multiple data series over time or categories. Unlike standard line charts, where lines are plotted independently, stacked line charts stack the values of each series on top of one another, allowing you to see the cumulative total as well as the contribution of each category. Key Concepts Data Series: Each line in a stacked line chart represents a different data series. For example, sales data for different products over several months. Cumulative Value: The height of each section represents the total of all previous values plus the current data series. Axes: The X-axis typically represents time or categories. The Y-axis represents the cumulative value. Color Coding: Each data series is usually represented by a different color, making it easier to distinguish between them. Example Scenario Let’s say we have sales data for three products (A, B, and C) over four months (January to April): Month Product A Product B Pro