How do I make a gradient for my data
显示 更早的评论
So I have a 3 column set of data. I saved the imported data to my workspace and used the load tool. Now i'm trying to get the gradient and graph it all on a mesh graph. Any idea how I can get the gradient for all my data or even just one column at a time.
M=load('x10meters.mat'); syms x y z f = x10meters; gradient(f, [x,y,z])
3 个评论
Ethan Koproski
2018-4-23
njj1
2018-4-23
What are you computing the gradient with respect to? Typically a gradient is a derivative in a particular direction or directions. Are you just trying to compute a differential? If so, use the diff(f) command.
Ethan Koproski
2018-4-23
回答（1 个）
njj1
2018-4-24
0 个投票
The gradient function in Matlab takes in two main arguments: the independent variable(s) step size and the data as a function of the independent variable(s). So if you typed [dx,dy,dz] = gradient(F); (where F is your matrix), you would get a numerical gradient of each of the columns in your matrix. In this case, the step size would be assumed as 1, but you can specify it differently if you like, for each column in your matrix.
类别
在 帮助中心 和 File Exchange 中查找有关 Triangulation Representation 的更多信息
2018-4-23
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
