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Unblocking and Enabling Macros
When Windows detects that a file has come from a computer other than the one you’re using, it marks the file as coming from the web, and blocks the file. This includes files emailed to you and files...
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ISPRIME Lambda Function
Prime Numbers (and AI) Using ChatGPT and other AI tools to write Excel formulas has become popular. Bill Jelen aka Mr Excel has a simple test to see whether the particular AI engine is reliable: ask...
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Lambda Moving Average Formulas
In two recent articles, Excel Lambda Moving Average and Improved Excel Lambda Moving Average, I described my efforts to build a Lambda moving average formula that worked the way I wanted it to. I’ve...
View ArticleIndex of Peltier Tech Blog
Main Topics Cornerstone Articles (Important and Popular Posts) Axis Labels Axis Scales Chart Events Combination Charts Conditional Formatting of Charts Custom Chart Types Data Labels Dynamic Arrays,...
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Improved Excel Lambda Moving Average
I recently wrote about how I wrote an Excel Lambda Moving Average formula. I started with internet searches, which led to formulas which didn’t work or formulas which were too complicated for me to...
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Excel Lambda Moving Average
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...
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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...
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Trendlines and Chart Types in Excel
tldr; Stick to XY Scatter charts if you need trendlines for your data. Line charts may misrepresent the relationships in your data. Trendlines and Chart Types A user had problems with my Trendline...
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Unlink Chart Data
There are occasions when you may want to break the link between a chart and its underlying data. Maybe you copied the chart from another workbook, and you no longer have access to that workbook. Maybe...
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PBCharts Inflation Analysis
Last week we released the PBCharts (Process Behavior Charts) tool for performing SPC control chart analysis. I’ve been working on PBCharts for well over a year, and we had an extended beta testing...
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Excel Chart Series Size Limits
How many points can I plot in each series of my chart? How large of a VBA array can I plot in my chart? Two good questions, which I’ll investigate here. A colleague emailed me asking about the VBA...
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Combination Chart for Multi-Factor Test Results
I’m not sure what to call this chart, other than it’s a combination chart (stacked column and XY scatter) and it requires some additional data manipulation. The chart shows test results from a test...
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Clustered Column and Line Combination Chart
Combination charts in Excel are pretty easy, once you figure them out. But sometimes they present challenges. If you make a combination clustered column chart and line chart, it takes special...
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Good Chart Data
Tips and Tricks Everybody loves their Excel tips and tricks. I know I’m famous for my extensive collection of Excel charting tricks. But the most important charting trick is Get The Data Right. The...
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Make Excel Chart Gridlines Square
Excel does a pretty good job of scaling its chart axes. But there are times when you wish it would do a better job. One case is shown in XY Scatter chart below. All of the points have X and Y values...
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Prevent Overlapping Data Labels in Excel Charts
Overlapping Data Labels Data labels are terribly tedious to apply to slope charts, since these labels have to be positioned to the left of the first point and to the right of the last point of each...
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Slope Chart with Data Labels
This brief tutorial shows how to construct a slope chart in Excel, provides a simple VBA procedure to apply and format data labels quickly, and shows a finished chart with some manual repositioning of...
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Dynamic Charts Using Dynamic Arrays
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...
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Install an Excel Add-In in Excel for Mac
Written by Ron de Bruin, Microsoft Excel MVP. Excel Add-Ins A lot of Excel procedures are packaged in Add-Ins. An Add-In is basically a workbook containing some code, that has some other unique...
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Dynamic Array Histogram
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...
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