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How to change line style of a plotted graph?

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Roel
Roel on 17 Dec 2014
Commented: Roel on 18 Dec 2014
Hello,
I would like to change the linestyle of a plotted graph for making color blind people to understand my graph. The graph is already plotted. I have no basic data (anymore), but only the saved figure. I tried the follwing:
hline = findobj(gcf, 'type', 'line')
set(hline(1),'LineStyle',':')
But that didnt seem to work.I added my graph.
Does anyone knows how to do this?
Roe

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Roel
Roel on 18 Dec 2014
Mmm, i do not know what i am doing wrong. I have indeed only one figure open.I also cleared my workspace. Does other versions of matlab have influence maybe?
Roel
Roel on 18 Dec 2014
I do manage to change the legend of the figure. But the plotted lines in the figure remain the same.
Roel
Roel on 18 Dec 2014
I found my mistake, had to change 1 in hline(1) to 7,8 or 9. Thanks anyway.

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Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 17 Dec 2014
If we test this example
plot(1:44)
hline = findobj(gcf, 'type', 'line')
set(hline(1),'LineStyle','--')
It seems to work

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