getting x values by clicking on axes

Hi all!

I have the set of (x,y) data:

x=[4 10 25 30 37 45 58 77 81 89 93 100 113 122 130 137 145 152 160 163]; y=[15 24 7 45 35 58 71 22 64 10 21 35 67 50 59 63 77 43 40 5];

After plotting it, I want to be able to get x values in t vector by clicking on the axes.

How can i do it?

[per isakson]

Why clicking on the axes? Why not by clicking on the curve?

Search for "Data Cursor" in the on-line help.

[Haykush]

Thanks, I'll try.

Answer 1

[Azzi Abdelmalek]

Click on your plot the add this code

x=get(gco,'xdata')
y=get(gco,'ydata')

[Azzi Abdelmalek]

You should click on the plot, not near the plot

[Azzi Abdelmalek]

Please, add a comment (click on comment this answer) instead of answer.

What do you mean by "I need to fix N data "

[Haykush]

Thanks for your recommendations))) (I'm beginner here)

I mean the following: We have (x,y) data set. I plot it in the graph. After that I want by clicking on the x axis to fix, for example, 5 points in the t vector...

[Azzi Abdelmalek]

You can use the figure editor:

On the top of your figure click on edit, then choose figure properties. Select your plot (click on your plot) then click on more properties, change the xdata and ydata

[Haykush]

But I want to program it in the m.file, because on the base of this function I write a program, where I should use the created t vector...

[Azzi Abdelmalek]

Then use

y=get(gco,'ydata')

to change the first values of y use

y(1:5)=[2 4 5 7 1]
set(gco,'ydata',y)

[Haykush]

OK, thanks so much.

If I will have any more question later, can I write you here?

[Azzi Abdelmalek]

If the answer helps , mark it as accepted, then post a new question, not here.

[Haykush]

How can I attach my graphic, to explain you my problem?

[Azzi Abdelmalek]

Please post a new question, not here!

[Haykush]

But it's not a new question... But How can I attach an image here?

[Azzi Abdelmalek]

Upload your image to a hosting website, then show the link

[Haykush]

Can I send you the file by e-mail? (I upload it here, but it says that it can take a few days to show on this site)

[Azzi Abdelmalek]

Ok

[Haykush]

Please, check your e-mail.

Answer 2

[Haykush]

First of all, thanks so much for your attention.

For example, I need to fix N data by clicking to the x axis. What do you suggest to do in this case?

Thanks in advance.