MATLAB: Take cells outside arrays to form new matrix

cell arraysMATLABmatrix

myarrays ={26*7 double} {43*7 double} …..{32*7 double} i could not get the (1,4) cell of each matrix to calculate the mean. the command i type is >>mean(myarrays{:}(1,4)), but the result have 63 output. how can i get one output of the mean from the (1,4) of all my matrix?

Best Answer

mean(cellfun(@(x) x(1,4), myarrays))

Related Solutions

MATLAB: Multiply each individual cell by a single matrix

Result=cellfun(@(x)x*matrix,Cell,'un',0)

MATLAB: I am supposed to get list of matrices but I am getting this.What do they mean

That is your list of matrices. It's called a cell array.

traj{1}      %that's your first matrix
traj{2}      %that's your 2nd  matrix, etc....

Since each matrix is the same size (4x4), if you wanted to combine the matrices stored in each element of the cell array into one big matrix, you could concatenate them horizontally

cell2mat(traj)  %assumes traj has size 1 x n

or concatenate them vertically

cell2mat(traj') %assumes traj has size 1 x n

or you could conver them to a 4 x 4 x 10 array

reshape(cell2mat(traj),4,4,10) %assumes traj has size 1 x n

or it might be best to just leave them in the cell array depending on how you will be using those data.

Best Answer

Related Solutions

MATLAB: Multiply each individual cell by a single matrix

MATLAB: I am supposed to get list of matrices but I am getting this.What do they mean

Related Question