adding only to the y value in matrix
4 次查看(过去 30 天)
显示 更早的评论
I need to add a constant only to the y value of all inputs in a matrix.
The task is to make it look like its lifted upwards on a graph.
3 个评论
Geoff Hayes
2021-2-11
Or just add a constant to the column (or row) of the matrix that has the y data. You may need to show us what your current matrix looks like (how is it constructed, where are the x and y values), etc.
采纳的回答
Steven Lord
2021-2-11
The answer depends on how you're storing your coordinate data. Is it stored as two columns, the first x and the second y?
v = (1:10).';
xy = [v, v.^2];
plot(xy(:, 1), xy(:, 2))
If so just add your constant to the second column of xy.
Is your data stored as arrays of points each containing x, y, and z data?
[x, y, z] = peaks;
surf(x, y, z)
If so add your constant to the y array.
Is your data stored as an image?
im = imread('ngc6543a.jpg');
imshow(im)
In this case you'll probably want to add the 'XData' and 'YData' options to your imshow call.
Or is it stored in some other way? If so please describe how you're storing your data.
0 个评论
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Data Type Identification 的更多信息
产品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!