Mean value of each cell of 2D grid

2 次查看（过去 30 天）
darshan ravoori
darshan ravoori 2019-3-1
评论： Iris Kiebert 2019-12-16
Hi I am trying to solve a problem that has x,y data and f(x,y). It's a 2D temp map with f(x,y) being temperature values.
I have too many x (3000 values) and y (3000) values and f(x,y) (3000) values.
When I plot surface 2D it generates very odd map with too much of data. To avoid that I am looking to reduce the number of grid points by taking some avg. This way I can reduce the number of grid points.
Can any one has suggestions how to do matlab code for this?

请先登录，再回答此问题。

采纳的回答

Mark Sherstan
Mark Sherstan 2019-3-1
Look at Jan's answer here. He provides MATLAB code and a refernce to the File Exchange. For your convienance:
X = rand(20, 30);
R = reshape(X, 2, 10, 2, 15);
S = sum(sum(R, 1), 3) * 0.25;
Y = reshape(S, 10, 15);
https://www.mathworks.com/matlabcentral/fileexchange/24812-blockmean

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by