How do I set the limit for one axis on 3D plot?

Seems like a simple question but I cant get it figured out. I have a data set from experiment which looks vaguely like:

• two columns of data:
• first column = 'sets' of data range 200 to 750 with 70 interval steps. Approx 300 consecutive sets.
• second column = associated reading for value in column one.
• So basically I would like to plot y-axis with second column, z-axis of set number (i.e from 1 to 300), and x-axis of 400 to 750 instead of 200 to 750.I have tried every xlimit function I can find, and the plot tool has no problem setting the axis, however it plots the outlying data outside the axis!Please help, it is really frustrating as I have spent days trying to fix it already :-/

[José-Luis]

Could you show an example of your data. I am sorry, but I have a hard time understanding your description of the data.

[Frances]

Sorry its a bit complicated - I tried to type it in columns but the preview didn't show what I wanted at all. I'll type simple example as a code since it is easier to format it as a table that way.

 if true  
1 | 200 | 2
1 | 210 | 2.7
1 | 220 | 2.4
1 | 230 | 2.5
1 | ... | ...
1 | 750 | 2.8
2 | 200 | 5.1
2 | 210 | 4.9
2 | ... | ...
2 | 750 | 5.2
3 | 200 | 8.3
3 | 210 | 8.1
3 | ... | ...
3 | 750 | 8.2
etc for about 300 repeats until:
300 | 750 | 10.5
end
 Is that easier to visualise? (First column doesn't actually exist, that is simply how I picture the data as sets.) So I want to plot column 2 vs column 3 vs column 1, with a range of 400 to 750 for column 2.

[José-Luis]

 lH = plot3(col1,col2,col3,'k.');
 aH = ancestor(lH,'axes');
 set(aH,'XLim',[400 750])

[Frances]

Thanks for replying so fast! it is having difficulty with the last line. Parse error at 'XLim'[400 750]

[José-Luis]

Missed a colon.

[Frances]

Sorry I just fixed that error. Same problem as before :-/

[Frances]

Tried to put the image on here but not sure how to

[José-Luis]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

[Frances]

Basically it is still plotting outide the axis limits.

[Frances]

Answer 1

[José-Luis]

If col1 is your x data:

 idx = col1>=400 && col1 <=750;
 lH = plot3(col1(idx),col2(idx),col3(idx),'k.');
 aH = ancestor(lH,'axes');
 set(aH,'XLim',[400 750])

[Frances]

Hi, I tried this too and had to change it about a bit for my data but it still wont work. I'm using the surf plot so maybe that is where the issue lies? I think I will re-write the code and start from the beginning!