interpolation using 2D look up table
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Hello
My Question is
I have matrices A,B gives C. All the matrices are stored in a workspace and has size 81x200.
I would like to interpolate them and store them in a 2D lookup table.
I had used the interp2 function but I am getting errors
could some one clarify this issue?
采纳的回答
See if transposing all of them (use the simple transpose (.')) will work.
To see the difference between meshgrid and ndgrid results —
x = 1:3;
y = 4:6;
[X1,Y1] = meshgrid(x,y)
[X2,Y2] = ndgrid(x,y)
Transposing all of them should put them in ndgrid format.
.
2 个评论
SGK
2024-2-7
Star Strider
2024-2-7
You need to have some sort of relation that uses matrices ‘A’ and ‘B’ to produce values of matrix ‘C’ for each element of ‘A’ and ‘B’. After that, given any value within the limits of ‘A’ and ‘B’, you can interpolate to get a new value for ‘C’. You can potentially use any two matrices to interpolate the value of the third matrix, however that likely comes with restrictions, since in that instance there cannot be any repeating values of, and it would be best if was monnotonically increasing or decreasing. It might not be possible to find the ‘A’ and ‘B’ matrices given any specific value of ‘C’ except in some restricted instances. That would certainly not be true generally.
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