If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

Microsoft Excel gives you a number of tools to build, update and manipulate graphs and charts. If you want to take the data from one chart and place it on another chart, Excel gives you two ways to ...

Microsoft Excel 2007 supports a variety of chart types to create a combination chart and help your viewers see the differences between two or more data series. For example, one data series in a line ...

A trendline in Excel is a line that shows a general trend (upwards/downwards or increase/decline). Thus, it can help in a quick interpretation of the data. The trendline in Excel can be added to a ...

Charts and sparklines are powerful data visualization tools in Excel. Here’s a guide to the most popular chart types in Excel and how to best use them. Microsoft Excel offers a plethora of tools for ...

We’ve all been there, a crucial presentation is coming up, and your important data looks flat and uninspiring. How do you make your numbers stand out and tell a story in your next presentation? The ...

Back in 2004, data visualization guru posted an article on his website about small intense charts that he dubbed sparklines. The idea is to fit a lot of data points into a chart that is about the same ...