mrdivide error for cell array divided by constant

Hi, I'm trying to divide values in a cell array by a constant in a vector:

file = diagnoseTargetsfalciparumEvolved2;
[a,b] = size(file);
totalSamples = b-4;

chrom = cell(16,1);
for n = 1:16;
chrom{n} = file(file.chr==n,:);
end

xbar = zeros(16,totalSamples);
for n = 1:16;
    for k = 4:(totalSamples) + 3;
        xbar(n,k-3) = mean(double(chrom{n}(:,k)),1);
    end
end

norm = cell(16,1);
for n = 1:16;
norm{n}(:,1:4) = chrom{n}(:,[1:3,14]);
    for k = 4:(totalSamples) + 3;
        norm{n}(:,k + 1) = chrom{n}(:,k)/xbar(n,k-3);
    end
end

The last section which creates the cell called norm, is where I get the following error:

Undefined function 'mrdivide' for input arguments of type 'dataset'.

Error in diagnoseTargets_falciparum (line 22) norm{n}(:,k + 1) = chrom{n}(:,k)/xbar(n,k-3);

neither chrom or xbar are datasets. chrom is a cell array and xbar is a matrix.

Anyone know why I am getting this error? or how to fix it?

Thanks!

[Geoff Hayes]

Pinkvirus - put a breakpoint at the line

 norm{n}(:,k + 1) = chrom{n}(:,k)/xbar(n,k-3);

and run your code. When the debugger pauses at the above line look at chrom{n}(:,k) and xbar(n,k-3). What are the data types for each?

[Pinkvirus]

Geoff

chrom{n}(:,k) is dataset and xbar(n,k-3) is double

now I see, thank-you.

But, how to make it so inside the cell array, chrom{n}(:,k) is not a dataset?