# Create a plot with values from matrices of many dimensions.

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stelios loizidis on 14 Jan 2022
Commented: stelios loizidis on 14 Jan 2022
Hello,
I have the following matrices: A:10X10X10X10, B:10X10X10X10, C:10X10X10X10, D:10X10X10X10 and S:10X10
What I want is a contour plot that includes the values from all the matrices (A,B,C,D,S). I tried the commands contour and surfc but the following errors occur:
contour: "Input arguments must have at most 2 dimensions."
surfc: "Value must be a vector or 2D array of numeric type."
There is a way to make a corresponding plot such as a contour plot, with values from all the matrices?
Your help is important !!!

David Sanchez on 14 Jan 2022
Hi Stelios,
it seems you are trying to plug 4D matrices into the surfc function, and as you mention:
surfc: "Value must be a vector or 2D array of numeric type."
Grab a 2D portion of each matrix and plug it into surfc. On how to extract the first 2 dimension of matrix A, use for example the following:
A_2D = A(:,:, 1, 1);
##### 3 CommentsShow 1 older commentHide 1 older comment
David Sanchez on 14 Jan 2022
Loop over those simensions (the 3rd and 4th argument).
The 2D matrix given by the 2nd element of the 3rd dimension and the 1st element of the 4th dimension is:
A_2D = A(:,:, 2,1);
stelios loizidis on 14 Jan 2022
Thanks for the valuable help !!!!

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