How to get trendline equation for to graphs

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

Answer 1

[Florian]

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.