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How to get trendline equation for to graphs

Asked by Emil Eterovic on 29 Feb 2016
Latest activity Answered by Florian
on 1 Mar 2016
So i have made two plots on the same graph,and now i need trendline equtions for them both. I know how to get the trendlines themselfs and only one equation at a time,but i was wondering if there is a way for them both to be present at the same time? Because if i use tools->basic fitting then only one equation for one plot can be on the graph. Thanks

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1 Answer

Answer by Florian
on 1 Mar 2016
 Accepted Answer

Calculate the line fit variables in your code using polyfit: http://ch.mathworks.com/help/matlab/ref/polyfit.html
Using the parameters, calculate x and y values for each fit.
After plotting your points, use the command "hold on" to plot the other datapoints and all trendlines.

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