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 Post subject: Charts in Excel
PostPosted: 23 Nov 2009, 14:48 
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H-Ok. So. Here's the earth....

But seriously. I need some help with a project I have in astronomy. All semester, I've been taking observations and collecting data on the moon. For the final report, we have to plot our data in Excel, and insert a "best fit line" for the points, and find the degrees of the line, and the equation of the line, etc. What I want to know is, which chart do I use to get a best fit line? Unless I'm missing something, I don't see any that have that option. My first inclination is to use a scatter plot, but I've been wrong before. Help? :aw:



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 Post subject: Charts in Excel
PostPosted: 23 Nov 2009, 15:41 
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Use the scatter plot. Once the graph is made, right click (ctrl-click for mac) on any of the plotted points. It should select all of the points, and bring up a context menu. There's an option for adding a "trendline". Select it, and it will bring up a menu to customize your best fit line (make it linear, exponential, logarithmic, etc...).

Hope that helps!


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 Post subject: Charts in Excel
PostPosted: 23 Nov 2009, 15:42 
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Awww..he's so helpful. ^__^


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