{"id":1306,"date":"2026-07-27T01:43:45","date_gmt":"2026-07-27T01:43:45","guid":{"rendered":"https:\/\/www.vpascode.com\/id\/docs\/uncategorized\/echarts-playbook\/stacked-area-chart-cumulative-trends-and-contribution-analysis\/"},"modified":"2026-07-30T01:27:02","modified_gmt":"2026-07-30T01:27:02","slug":"stacked-area-chart-cumulative-trends-and-contribution-analysis-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/id\/docs\/vpascode-docs\/echarts-playbook\/stacked-area-chart-cumulative-trends-and-contribution-analysis-guide\/","title":{"rendered":"Stacked Area Chart: Cumulative Trends and Contribution Analysis"},"content":{"rendered":"

When you need to track both overall total volume and individual sub-component contributions over time, the Stacked Area Chart<\/strong> is the ideal visualization tool. Stacking area fills vertically creates a continuous composite view where the topmost line represents the aggregate total, while individual band widths show changing sub-category contributions, such as total web traffic broken down by search engine, organic, and direct referral channels over several months.<\/p>\n

The Mechanics of Stacked Area Charts<\/h2>\n

Stacked area charts combine line series configurations with matching stack<\/code> attributes. When the rendering engine detects identical stack<\/code> identifiers across multiple series with type: 'line'<\/code> and areaStyle<\/code> active, it stacks each data point sequentially above the preceding series line path along the vertical Y-axis.<\/p>\n

1. Essential Setup<\/h3>\n

To construct a basic stacked area chart, define a continuous X-axis, set type: 'line'<\/code> on each series, enable areaStyle<\/code>, and assign an identical stack<\/code> identifier across all series:<\/p>\n

\r\n
\r\n ECharts<\/span>\r\n \r\n <\/path><\/path><\/svg>\r\n Edit ECharts in VPasCode<\/span>\r\n <\/a>\r\n <\/div>\r\n
\r\n 
option = {\r\n    tooltip: {\r\n        trigger: 'axis',\r\n        axisPointer: { type: 'cross' }\r\n    },\r\n    legend: {\r\n        data: ['Email', 'Union Ads', 'Video Ads', 'Direct']\r\n    },\r\n    xAxis: {\r\n        type: 'category',\r\n        boundaryGap: false,\r\n        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']\r\n    },\r\n    yAxis: {\r\n        type: 'value'\r\n    },\r\n    series: [\r\n        {\r\n            name: 'Email',\r\n            type: 'line',\r\n            stack: 'Total',\r\n            areaStyle: {},\r\n            data: [120, 132, 101, 134, 90, 230, 210]\r\n        },\r\n        {\r\n            name: 'Union Ads',\r\n            type: 'line',\r\n            stack: 'Total',\r\n            areaStyle: {},\r\n            data: [220, 182, 191, 234, 290, 330, 310]\r\n        },\r\n        {\r\n            name: 'Video Ads',\r\n            type: 'line',\r\n            stack: 'Total',\r\n            areaStyle: {},\r\n            data: [150, 232, 201, 154, 190, 330, 410]\r\n        },\r\n        {\r\n            name: 'Direct',\r\n            type: 'line',\r\n            stack: 'Total',\r\n            areaStyle: {},\r\n            data: [320, 332, 301, 334, 390, 330, 320]\r\n        }\r\n    ]\r\n};<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n
\"\"<\/p>\n
 <\/p>\n
Advanced Structural Techniques<\/h2>\n
Stacked area charts can be configured to focus either on overall cumulative growth or relative proportional shifts over time.<\/p>\n
1. 100% Normalized Percentage Area Chart<\/h3>\n
When evaluating proportional shifts rather than total aggregate volume over time, normalize your dataset to 100% per horizontal time point:<\/p>\n            
\r\n                                
\r\n                    ECharts<\/span>\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                
\r\n                    
option = {\r\n    tooltip: {\r\n        trigger: 'axis',\r\n        formatter: '{b}\r\n{a0}: {c0}%\r\n{a1}: {c1}%\r\n{a2}: {c2}%'\r\n    },\r\n    legend: {\r\n        data: ['Desktop', 'Mobile', 'Tablet']\r\n    },\r\n    xAxis: {\r\n        type: 'category',\r\n        boundaryGap: false,\r\n        data: ['2023', '2024', '2025', '2026']\r\n    },\r\n    yAxis: {\r\n        type: 'value',\r\n        min: 0,\r\n        max: 100,\r\n        axisLabel: { formatter: '{value}%' }\r\n    },\r\n    series: [\r\n        {\r\n            name: 'Desktop',\r\n            type: 'line',\r\n            stack: 'percent',\r\n            smooth: true,\r\n            areaStyle: {},\r\n            data: [65, 55, 48, 40]\r\n        },\r\n        {\r\n            name: 'Mobile',\r\n            type: 'line',\r\n            stack: 'percent',\r\n            smooth: true,\r\n            areaStyle: {},\r\n            data: [25, 35, 42, 50]\r\n        },\r\n        {\r\n            name: 'Tablet',\r\n            type: 'line',\r\n            stack: 'percent',\r\n            smooth: true,\r\n            areaStyle: {},\r\n            data: [10, 10, 10, 10]\r\n        }\r\n    ]\r\n};<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n
\"\"<\/p>\n
 <\/p>\n
Fine-Tuning Layout and Styling<\/h2>\n
Because stacked areas completely cover the background, adjusting fill opacity and line strokes helps keep individual layers clear and legible.<\/p>\n
1. Custom Layer Opacity and Border Separators<\/h3>\n
Setting solid line strokes over slightly translucent area fills creates crisp visual boundaries between adjacent stacked bands:<\/p>\n            
\r\n                                
\r\n                    ECharts<\/span>\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                
\r\n                    
option = {\r\n    tooltip: {\r\n        trigger: 'axis'\r\n    },\r\n    xAxis: {\r\n        type: 'category',\r\n        boundaryGap: false,\r\n        data: ['Q1', 'Q2', 'Q3', 'Q4']\r\n    },\r\n    yAxis: {\r\n        type: 'value'\r\n    },\r\n    series: [\r\n        {\r\n            name: 'Product A',\r\n            type: 'line',\r\n            stack: 'volume',\r\n            smooth: true,\r\n            lineStyle: { width: 2, color: '#5470c6' },\r\n            areaStyle: { color: '#5470c6', opacity: 0.7 },\r\n            data: [120, 150, 180, 210]\r\n        },\r\n        {\r\n            name: 'Product B',\r\n            type: 'line',\r\n            stack: 'volume',\r\n            smooth: true,\r\n            lineStyle: { width: 2, color: '#91cc75' },\r\n            areaStyle: { color: '#91cc75', opacity: 0.7 },\r\n            data: [220, 280, 250, 310]\r\n        },\r\n        {\r\n            name: 'Product C',\r\n            type: 'line',\r\n            stack: 'volume',\r\n            smooth: true,\r\n            lineStyle: { width: 2, color: '#fac858' },\r\n            areaStyle: { color: '#fac858', opacity: 0.7 },\r\n            data: [150, 190, 220, 260]\r\n        }\r\n    ]\r\n};<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n
\"\"<\/p>\n
 <\/p>\n
Strategic Best Practices<\/h2>\n
    \n
  • Anchor Stable Series at the Bottom:<\/strong> Place the largest or least volatile series at the bottom of the stack to establish a predictable baseline for the bands above it.<\/li>\n
  • Limit Band Count:<\/strong> Stacking more than 4 to 5 series makes middle bands hard to evaluate accurately. Consider grouping minor categories into an “Other” category.<\/li>\n
  • Use axisPointer: { type: 'cross' }<\/code>:<\/strong> Combining hover crosshairs with a continuous tooltip makes pinpointing specific date values across dense vertical stacks straightforward.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    When you need to track both overall total volume and individual sub-component contributions over time, the Stacked Area Chart is the ideal visualization tool. Stacking area fills vertically creates a continuous composite view where the topmost line represents the aggregate…<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":1254,"menu_order":7,"template":"","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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Stacked Area Chart | VPasCode Text to Diagram Guide<\/title>\n<meta name=\"description\" content=\"Show total trends across multiple categories using ECharts stacked area charts in VPasCode, a text to diagram tool.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vpascode.com\/id\/docs\/vpascode-docs\/echarts-playbook\/stacked-area-chart-cumulative-trends-and-contribution-analysis-guide\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ECharts Stacked Area Chart | VPasCode Text to Diagram Guide\" \/>\n<meta property=\"og:description\" content=\"Show total trends across multiple categories using ECharts stacked area charts in VPasCode, a text to diagram tool.\" \/>\n<meta property=\"og:url\" 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