Splitting an array?

Hello everybody. Here is the issue.. having the array C{1,1} I normally don’t know the exact number of rows. How can I split that matrix in 2 parts?, I can use :

o = (C{1,1}(:,[1:end/2])); 

to split the first part, however the second part is not that easy because the number of rows varies at the interior in each ‘C’ array. Thank you.

Answer 1

[Jan]

Data  = C{1,1};
Len   = size(Data, 2);
Half  = floor(Len / 2);
Part1 = Data(:, 1:Half);
Part2 = Data(:, Half+1:Len);

It is not clear to me, what this means: "second part is not that easy because the number of rows varies at the interior in each ‘C’ array"

By the way, 1:x is a vector already. The square brackets are Matlab concatenation operator. [1:x] concatenates 1:x with nothing and is a waste of time in consequence.

[Fercho_Sala]

@Jan thank you so much, this is the right answer :)

[Fercho_Sala]

@Jan how I can use the same code to split the following arrays C{1,2},C{1,3} ... etc with the same structure (Part1, Part2) for each one independently? , probably with a loop? Thanks.

[Jan]

Yes, a loop will solve this:

C1 = cell(size(C));
C2 = cell(size(C));
for k = 1:numel(C)
   Data  = C{1, k};
   Len   = size(Data, 2);
   Half  = floor(Len / 2);
   C1{k} = Data(:, 1:Half);
   C2{k} = Data(:, Half+1:Len);
end

[Fercho_Sala]

@Jan thanks a lot for your knowledge , it works pretty good. :)

[Fercho_Sala]

@Jan is it possible to plot each item within 'C1' or 'C2' in a subplot structure (4x4) (of course it will be several independent windows) using the 'imagesc' function with the same loop structure? if so, how could you do it?

[Fercho_Sala]

@Jan any comments?