plotting, tools and fitting

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Johannes Deelstra
Johannes Deelstra on 22 Jan 2019
Commented: Luna on 22 Jan 2019
Hei
I plot two lines using
plot(1961:2017,res(:,2))
hold on
plot(1961:2017,res(:,4),'--')
Then in figure clicking on Tools I can do basic linear fitting through series one (data1)
When I also want to do a linear fit through series two(data2), the first fit disappears
How can I keep both linear fits (through data1 and data2) in place
I tried lsline but this can only be applied to scatter (x,y) it looks like
What other possibilities are there.
Regards
Johannes

Accepted Answer

Luna
Luna on 22 Jan 2019
Try to define the axis handle inside the figure. Than hold it:
hFig = figure;
hAxis = axes(hFig);
hold(hAxis,'on')
plot(hAxis,data1,'*r');
plot(hAxis,data2,'b');
  4 Comments
Johannes Deelstra
Johannes Deelstra on 22 Jan 2019
Hei Luna
I fixed the problem by using polyfit and polyval
Thanks for helping
Luna
Luna on 22 Jan 2019
Your welcome :)

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