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Red Balls of Fire

Bernard Kilonzo

Bernard Kilonzo

Admin

Lead Analytics Consultant

Join date: Dec 13, 2019

Bernard is a senior data analytics consultant based in Kenya with expertise in data analytics and visualization using Tableau, Power BI, and Shiny.

Bernard runs a remote-first data analytics and visualization consultancy firm Rigor Data Solutions. He spends much of his time helping clients design, develop, and deploy solutions that extract valuable insights. He has extensive experience in data analytics consulting, where he has successfully developed solutions for clients such as UNFPA, Social Impact, Day for Girls International, Evidence Action etc. Bernard is a 3X Tableau certified expert and has an undergraduate degree in Mathematics from Egerton University.

Outside work, Bernard loves watching medieval series, enjoys adventure travel, and orchard farming.

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Related Reading (340)

Dec 26, 2025 ∙ 2 min

How to Create a Toggle Button in Power BI

Overview A toggle button is an interactive UI element that lets users switch between two (or more) views, visuals, or states inside a report. It behaves like an ON/OFF switch - useful when you want to show different insights without cluttering the page. A toggle button can be used to switch between. Two different charts (e.g., Table – Pie Chart) Two metrics (e.g., Revenue – Profit) Two categories (e.g., Hospital Data – Condition data) Light versus dark themes Detailed versus summarized views....

Dec 20, 2025 ∙ 2 min

How to Create a Toggle Button in Tableau

What is a Toggle Button? Toggle buttons are UI controls that let users switch a setting between two states - typically ON/OFF, Show/Hide, Start/Stop or Enable/Disable - with a single tap or click. They provide immediate visual feedback by changing appearance when activated, making them ideal for quick, binary decisions such as turning notifications on, switching themes, or enabling features in apps and dashboards. Use Case: Switching Between Views (e.g., Revenue & Profit) In this article, I...

Dec 18, 2025 ∙ 2 min

Creating Navigation Buttons in Power BI

What are Navigation Buttons? Navigation buttons are interactive elements that let users move between report pages or bookmarks, creating a smooth, app-like experience inside dashboards. They help guide viewers through complex reports without needing to scroll or manually switch tabs. Key Features of Navigation Buttons Automatically generates buttons for each report page. Button labels match the page names, and the order reflects the report’s page order. Updates dynamically if you add, remove,...

Dec 13, 2025 ∙ 2 min

Action Filters in Power BI

Overview Action filters refer to interactive filtering behaviors that occur when you click on a visual element. Instead of just highlighting related data, you can configure visuals so that clicking on one chart filters other visuals across the report, enabling drill-through, cross-report navigation, or dynamic exploration of data. How to Set Up Action Filters To demonstrate how to set up action filters in your Power BI dashboards, I have created the following demographic dashboard showcasing...

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