How to put data into a neat table?

3 views (last 30 days)
After a series of frustrating tests, I was finally able to obtain the data needed to form the coordinates given in the picture below. However, I don't know how to actually input my data into MatLab so that it outputs a neat-looking coordinate meshgrid. Some assistance would be nice. Here is my code to generate the data.
x=[-3:3];% all x-values from coordinate table
y=[-4:4]; % all y-values from coordinate table
y=y'; % transpose y
xGrid=repmat(x,[length(y),1]); % makes equal columns of x for rows of y
yGrid=repmat(y,[1,length(x)]); % makes equal rows of y for columns of x
Z= 1.8.^(-1.5*sqrt(xGrid.^2+yGrid.^2)).*cos(0.5*yGrid).*sin(xGrid); % vectorization
  2 Comments
Walter Roberson
Walter Roberson on 3 Mar 2016
why are you not just calling meshgrid() ?
Karan Sandhu
Karan Sandhu on 3 Mar 2016
Thanks for the reply. Are you saying that I should just use meshgrid(xGrid,yGrid,Z)?

Sign in to comment.

Accepted Answer

Image Analyst
Image Analyst on 3 Mar 2016
Like this:
[xGrid, yGrid] = meshgrid(x,y);
Z= 1.8.^(-1.5*sqrt(xGrid.^2+yGrid.^2)).*cos(0.5*yGrid).*sin(xGrid); % vectorization
% Then print to command window
for kx = 1 : length(x)
thisx = x(kx); % Get this one x.
for ky = 1 : length(y)
thisy = y(ky); % Get this one y
fprintf('(%d, %d, %.4f) ........ you finish it
end
end
  1 Comment
Karan Sandhu
Karan Sandhu on 3 Mar 2016
Edited: Karan Sandhu on 3 Mar 2016
Hi thanks for the reply. In the part where it says "you finish it", my fprintf looks like the following statement below. I'm still not getting this table nor do I understand why I am not getting it. I apologize if the solution to my problem is painfully obvious, but this is my first programming class and I am unfamiliar with MatLab.
fprintf('(%d, %d, %.4f)\n',thisx,thisy,Z)

Sign in to comment.

More Answers (0)

Categories

Find more on Tables in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!