Modifying a function (2D Plot and 3D Plot)
조회 수: 1 (최근 30일)
이전 댓글 표시
- I currently have a grid that goes from 1 to 20 for x and y.
function [ ] = make3DGrid( )
x=zeros(20*20,1);
y=zeros(20*20,1);
count = 1;
for i=1:20
for j=1:20
x(count) = i;
y(count) = j;
count = count+1;
end
end
- How do I modify this function so that it takes 6 arguments (in this order): xmin, xmax, numx, ymin, ymax, numy. I want these to be the min and max ranges for a grid of data points.
- Also, instead of having just the x and y variables, how could I modify the function to use/return a single matrix (gridXY) which would be a nx2 matrix of the x and y locations on the grid.
For the first part, I know linspace might be involved but I'm not sure. Any help would be appreciated! Thanks.
댓글 수: 2
답변 (1개)
Rik
2020년 4월 26일
편집: Rik
2020년 4월 26일
Use linspace separately for x and y and then use meshgrid or ndgrid.
%create the vectors
x=linspace(xmin,xmax,numx);
y=____
%create the grid of all combinations
[x,y]=ndgrid(x,y);
%reshape x and y into vectors
x=x(:);
____
%create nx2 matrix
result=____
댓글 수: 4
Rik
2020년 4월 26일
If you fill in the missing parts of this code you will end up with two vectors. How would you make an nx2 matrix from two vectors?
참고 항목
카테고리
Help Center 및 File Exchange에서 Resizing and Reshaping Matrices에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!