Plotting a 2D matrix

4 次查看（过去 30 天）
John
John 2011-6-23
I have some data I would like to visualize, only I'm not sure which is the way to go about it. I want to take a 42x72 matrix called "data" of integers and plot:
f(i,j,data(i,j)), where i and j are index's of the data matrix. And data is the name of the matrix which holds the data. Or we can use a and b since this is matlab and we have problems with complex #.
I essentially want a 3D plot or a color plot which could help me visulize where the highest values are in the "data" matrix.
In addition, I have the curve fitting tool box. I wanted to know if some kind of function could be generated to describe the values in the matrix. So: f(i,j) = data(i,j). Can I find a function in mathmatical terms, rather than just having a big matrix, "data", that stores my points.
Thank you

请先登录，再回答此问题。

采纳的回答

Sean de Wolski
Sean de Wolski 2011-6-23
doc surf
doc mesh
doc plot3
to name a few visualization tools. You CAN fit a function to it, will it be a good fit? Not necessarily - that depends on your data/system.
  12 个评论
显示 10更早的评论
John
John 2011-6-23
The data represents probablity on a 2D map. So if I could generate the probablity just based on an equation, it would save memory.
Sean de Wolski
Sean de Wolski 2011-6-24
< 1Kb! Is there any option of getting more memory? If you just need to be able to generate points in this _exact_ space you could use a higher order polynomial. But it would be unstable for ANY other application.
Overall, I'd recommend getting more memory...

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Interpolation 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