Category Archives: Charts

More on trend line equations on line charts

In the previous post we saw that if a trend line equation is added to a line chart it will return the wrong coefficients if the x values are not a continuous sequence of integers, starting at 1 (click on … Continue reading

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Displaying trend line equations on line charts

This post is prompted by a recent comment at Using LINEST for non-linear curve fitting which found that the trend line formula displayed on a chart was totally different from that found using the Linest function. The problem was caused by using a … Continue reading

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A mystery curve links to Jupyter

Reviewing some of my less visited links recently, I was intrigued by a post at The Math Less Travelled: The previous post at the site provides more details of the source of the curve, and some links to an interactive … Continue reading

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Managing Data Using Excel …

… is a new book by Mark Gardener, published by Pelagic Publishing.* It is subtitled “Organising, summarising and visualising scientific data”.  The publishers say of the book: Microsoft Excel is a powerful tool that can transform the way you use … Continue reading

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Pi day of the Century

In North America, where today is 3-14-15, it is Pi day, and since there are not 31 days in April, the rest of us have to go along with that as well. Not only is it Pi day, it’s the … Continue reading

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Charts and Charting

I don’t do a lot on Excel charts because there are already a number of excellent blogs and sites that specialise in that area; notably: Peltier Tech Blog but after compiling my “Downloads by Category” page I found that I … Continue reading

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Automating chart scale limits – update

I wrote about this function 2 1/2 years ago, and promptly forgot about it, but a few days ago brian provided an answer to a question that was raised shortly after it was first posted, concerning how to apply the function … Continue reading

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