make array of array like array within array

3 views (last 30 days)

I want to create an array within array. I have a m*n 2D matrix of order (256,482,2) having entries as pair of points. I want to first convert oit into 2D array and then want to make array of each row like

 for N=1 to 256
NewRow=Z(N)
Append(Points,Z(N))
End for

Answers (1)

JohnGalt
JohnGalt on 1 Oct 2018
look into the 'cat' command in matlab help
  1 Comment
Muhammad Sohail Abid
Muhammad Sohail Abid on 1 Oct 2018
actually this is the code in which I want to make arrays within arrays of Z here in Z I have a table of points. It has 256 rows so I want to make 256 arrays for each row within Z
disp('y^2 = x^3 + 5376x + 2438 mod 123457')
a=0:123456;
left_side = mod(a.^2,123457);
right_side = mod(a.^3+5376*a+2438,123457);
points = [];
for i = 1:length(right_side)
I = find(left_side == right_side(i));
for j=1:length(I)
points = [points;a(i),a(I(j))];
end
end
plot(points(:,1),points(:,2),'ro')
set(gca,'XTick',0:1:123456)
set(gca,'YTick',0:1:123456)
grid on;
pad_needed = 256 - (mod(size(points,1) - 1, 256) + 1);
if pad_needed > 0
points(end+pad_needed,:) = 0;
end
T = points;
Z = reshape(T,256,482,2);
img=rgb2gray(imread('lena.jpg'));
V=img(:);
V=V';

Sign in to comment.

Categories

Find more on Linear Algebra in Help Center and File Exchange

Tags

Products


Release

R2013a

Community Treasure Hunt

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

Start Hunting!