How to put data into a neat table?

3 vues (au cours des 30 derniers jours)
Karan Sandhu
Karan Sandhu le 3 Mar 2016
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 commentaires
Walter Roberson
Walter Roberson le 3 Mar 2016
why are you not just calling meshgrid() ?
Karan Sandhu
Karan Sandhu le 3 Mar 2016
Thanks for the reply. Are you saying that I should just use meshgrid(xGrid,yGrid,Z)?

Connectez-vous pour commenter.

Réponse acceptée

Image Analyst
Image Analyst le 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 commentaire
Karan Sandhu
Karan Sandhu le 3 Mar 2016
Modifié(e) : Karan Sandhu le 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)

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Tables dans Help Center et File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by