Here is my dilemma. I am trying to help a friend add a trendline to an existing graph and control the length of the trendline itself. The graph tracks scores over a date range. The problem is that ...

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 ...

Is there a way to add a trendline (linear regression) to a chart in Numbers or OpenOffice?<BR><BR>I've only been able to do this in Office. In fact, when I import an Excel spreadsheet that uses ...