#dynamic arrays

Top 10 Excel Functions (2025) — One Real-Life Use Case 🏷️ The Scenario (one sheet) You’re a sales analyst preparing a quick “actuals & issues” roll-up for the product team. You have transaction-level data: Date, Region, SalesRep, Product, Units, UnitPrice, Discount%, Returned (Yes/No) 📋 Sample…

1. A Quiet Revolution Inside Excel I remember the first time I saw a formula spill across cells by itself.No dragging. No copying. Just one cell – and the data flowed like water. It was strange at first, almost unsettling. I’d spent years managing cell references, absolute signs, and nested IFs like a juggler trying not to drop a ball. And suddenly Excel looked… alive. Dynamic Arrays changed…

Unlock Next-Level Productivity in Excel by Mastering Dynamic Arrays “The goal is to turn data into information, and information into insight.”– Carly Fiorina, former CEO of Hewlett-Packard Introduction: Why Dynamic Arrays Matter in Modern Excel If you’ve spent years wrangling data in Excel copying formulas across hundreds of cells, juggling helper columns, and trying to avoid broken ranges…

Moving Averages When averaging time-series data, you often want to smooth out peaks and valleys. A moving average is an easy way to smooth your data. When I track my weight, for example, I use a 7-day moving average. This smooths out peaks associated with weekends when I might go out to eat and enjoy a beer or two. The image below shows 25 random data points and a five-point moving average. The…

So einfach können Sie in Excel mit der Funktion EINDEUTIG() Duplikate aus einer Liste entfernen

Wenn Sie aus einer Liste mit Namen, in welcher die Namen von bestimmten Personen mehrfach aufgelistet sind, eine eindeutige Aufstellung machen wollen, in der jeder Name nur noch genau einmal aufgelistet wird, dann können Sie hierfür die Funktion EINDEUTIG() in Excel einsetzen. Wie dies funktioniert bekommen Sie in dem folgendem YouTube-Video (Quelle: https://youtu.be/xgf4ZpsEx5M) demonstriert.…

LAMBDA Function to Build Three-Tier Year-Quarter-Month Category Axis Labels

A certain data layout can produce a chart axis which divides and subdivides the categories into logical subcategories, such as years, quarters, and months in the following chart. Generally, this data layout must be produced by hand, because it relies on an arrangement of filled and blank cells to help Excel parse the data into subcategories. In this post I’ll show how a LAMBDA formula can build…

Dynamic Charts Using Dynamic Arrays: With Dynamic Arrays, it is easy to define variable sized calculations. It is also easier to define Names for use in dynamic charts.

I recently wrote Dynamic Array Histogram, a tutorial showing how to build a histogram with a normal curve overlay. It worked great, except that the chart was hard-coded to the worksheet ranges with the data. When I changed the Dynamic Array formulas, the spill ranges changed size, and I had to manually adjust the chart data ranges. Not too big a deal for just a few series, but still an…

Dynamic Array Histogram Dynamic Arrays make it easier than ever to generate a data range for a histogram, including a normal curve overlay. LET and LAMBDA functions make it even easier and more flexible.

My friend Thom and I had a discussion about tracking weight and using histograms to show the shape of the weight distribution. He told me he disliked the native Excel Histograms, and I agreed. I’ve written a lot of articles about histograms (see the list at the end of this article), and my commercial software, Peltier Tech Charts for Excel, provides a couple types of histogram which are much more…