Donut charts are a variation of pie charts that are sleek, visually appealing, and effective for showing proportions or contributions of parts to a whole. The central hole in a donut chart creates space for additional information, such as a total value or key metric, which enhances the chart’s storytelling capability. In this blog post, I’ll guide you step-by-step on how to create a donut chart in Tableau, referencing the best practices from trusted sources.
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In a previous post about how to use Tableau Exclude LOD in Power BI, we briefly mentioned ALLSELECTED. However, ALLSELECTED is a more powerful and complex function than we covered at that time. In this article, we’ll delve deeper into not only ALLSELECTED but also its counterpart, ALL, to fully understand their capabilities and applications in Power BI.
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When working with data in Power BI, summarizing and grouping data is essential for gaining insights and preparing reports. These operations allow you to aggregate values, perform calculations, and create custom tables or visuals based on specific grouping conditions.
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Unit progress bar charts are a fantastic way to represent progress toward a goal, breaking the visualization into smaller units to highlight individual contributions. These charts are both visually appealing and effective for storytelling. In this post, we’ll guide you through the process of creating a unit progress bar chart in Tableau using the Superstore dataset.
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SQL window functions are one of the most powerful tools for performing calculations across a defined range of rows while maintaining access to individual row-level details. Unlike aggregate functions that collapse rows into a single value, window functions allow you to perform calculations over a subset of rows (a window) while preserving the original row structure.
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Diverging bar charts, also known as “bikini charts,” are a fantastic way to compare two opposing metrics or categories. Unlike traditional side-by-side bar charts, diverging bar charts place the bars opposite each other with a shared Y-axis in the middle, making comparisons intuitive and visually striking.
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Dumbbell charts are a fantastic visualization tool for comparing two data points across categories while emphasizing the difference between them. Often used to show progress or change over time, these charts highlight how values diverge or converge for each category. In this blog post, we’ll walk you through how to create a dumbbell chart in Tableau using the Superstore dataset.
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When working with large datasets in Power BI, efficiency is key. One of the most powerful optimization techniques is query folding, a process that enables Power BI to push transformations back to the data source instead of handling them locally. But what exactly is query folding, and why is it important?
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In the world of data visualization and reporting, keeping track of the last time your data was refreshed is crucial for ensuring accuracy and reliability. Whether you’re using Power BI or Tableau, adding a refresh timestamp provides transparency and confidence to your audience.
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Dynamic titles in Power BI are a great way to make your reports interactive and user-friendly by displaying context-aware information based on the selected data. In this blog, we’ll walk you through the steps to create dynamic titles using the Sample Superstore dataset.
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