# Creating a table with matrices and arrays as elements

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Hi, Hope you're safe and fine.
My question is how to create a table whose elements are not necessarily of the same rows. For instance, I have attached a built-in table from "Monocular Visual Odometry" example of MATLAB. In this table, the first element is a number, the second one is a 1x3 vector of location, and the thrid one is a 3x3 matrix of rotation.
Any ideas are appreciated!

Stephen Cobeldick on 6 Mar 2021
Edited: Stephen Cobeldick on 6 Mar 2021
Lets have a look at the data:
S = struct with fields:
groundTruthPoses: [150×3 table]
T = S.groundTruthPoses
T = 150x3 table
ViewId Location Orientation ______ ____________ ____________ 1 {1×3 double} {3×3 double} 2 {1×3 double} {3×3 double} 3 {1×3 double} {3×3 double} 4 {1×3 double} {3×3 double} 5 {1×3 double} {3×3 double} 6 {1×3 double} {3×3 double} 7 {1×3 double} {3×3 double} 8 {1×3 double} {3×3 double} 9 {1×3 double} {3×3 double} 10 {1×3 double} {3×3 double} 11 {1×3 double} {3×3 double} 12 {1×3 double} {3×3 double} 13 {1×3 double} {3×3 double} 14 {1×3 double} {3×3 double} 15 {1×3 double} {3×3 double} 16 {1×3 double} {3×3 double}
The curly braces in the 2nd and 3rd columns tell us those numeric arrays are in a cell array. So lets do that:
VId = [2;4;8];
Loc = {[2,22,222];[4,44,444];[8,88,888]}; % cell array
Ori = { 2*rand(3); 4*rand(3); 8*rand(3)}; % cell array
out = table(VId,Loc,Ori)
out = 3x3 table
VId Loc Ori ___ ____________ ____________ 2 {1×3 double} {3×3 double} 4 {1×3 double} {3×3 double} 8 {1×3 double} {3×3 double}
Thank you!