Functions:
function [a, b] = MyFunc(x, y)
...
Array Manipulation:
- Convert array to a vector:
myarray(:);
- Find minimum, maximum:
min(myarray(:)); max(myarray(:));
- Point by point manipulation:
a = sqrt( (x .^ 2) / 2);
Vector manipulation:
| First / last elements: | first = v(1); last = v(end); |
| Normalize a vector: | v = v / norm(v); |
| Normalize many vectors: | vMag = sqrt(sum(v.ˆ2)); v = v./vMag(ones(1,size(v,1)),:); |
Logic:
if (any(x(:) < 0) See if any element is less than zero
Performance:
- Display Elapsed Time:
tic; myfunc(); toc
- Generate profiler report:
profile on; profile clear; myfunc(); profile report;
Loading images:
colormap(gray);
i = double(imread('image.bmp', 'bmp')); % load image
i = i(:,:,1); % just load the r plane
i = i / max(i(:)); % turn image into a vector an get max
Tip Documents:
