MATLAB: Error in solving cell array multiplication

MATLABrow wise array multiplication

how can I do the column multiplication of each cell array with a vector? I have a A= 2 4 2 4 2 3 and a cell array cell with 6×7 double.. I want to multiply row(1) of 6×7 double with A(1), row(2) with A(2)and so on.

Best Answer

result = cellfun(@(X)bsxfun(@times,Daily_demand(:),X),all_comb_of_routes,'uni',false);

btw, you can replace this code:

for n=1:6
    Daily_demand(n)=Demand(n)/demand_period;
end

with simply this:

Daily_demand = Demand / demand_period;

And what is the point of the "for n=1:No_of_Parts" loop? You are using the same variable n here which is used for the outer loop. I don't think you really want to do that.

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MATLAB: How to apply column wise operation on each matrix in cell

Not quite sure what the loop over n is for, but from your words, it sounds like you want to do something like this:

for m = 1 : length(all_comb_of_routes)
  % Extract the 7-by-3 matrix from inside the cell
  thisCellContents = all_comb_of_routes{m}
  % Sum if vertically.
  columnSums = sum(thisCellContents, 1);
  % See if each column sums to less than 3
  % and multiply by some number.
  if all(columnSums < 3)
    % All 3 sums are less than 3.
    thisCellContents = thisCellContents * allCells_array{n};
    % Put new result back into the cell
    all_comb_of_routes{m} = thisCellContents;
  else
    % At least one of the columns sums to 3 or more.
    % Nothing to do, just skip to the end of the loop
    continue;
  end
end

MATLAB: Error in running loop : the resultant is giving an empty array

summyia - I think that the problem is with the line

 for k=numel(Time_of_machine_inCells)

k is being initialized to a single value and so you are not iterating over anything. You probably want to use

 for k=1:numel(Time_of_machine_inCells)

instead. Note that this will take a lot (!) longer to run. :)

Best Answer

Related Solutions

MATLAB: How to apply column wise operation on each matrix in cell

MATLAB: Error in running loop : the resultant is giving an empty array

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