split a cell matrix into sub-matrices

Hello,

Please help me with the following:

Consider a 3x1 cell matrix called C, where

each cell element contains matrices with different number of rows, for example:

C{1,1}=a 100x10 matrix

C{2,1}=a 20x10 matrix

C{3,1}=a 30x10 matrix

How can I extract separate different sub-matrices (maybe with a for loop)?

For example,

for i=1:3

submatrix(i)=mat2cell(C(i,1));

end

I need 3 different sub-matrices.

Thank you very much.

Pavlos

Answer 1

[per isakson]

Hint:

    >> C{1,1} = rand(100,10);
    >> sub = C{1,1}( [2:4], [1:6] )
    sub =
        0.5576    0.4866    0.3355    0.2928    0.9422    0.0570
        0.1532    0.3821    0.1126    0.8330    0.5177    0.8108
        0.7899    0.6946    0.6691    0.9563    0.4559    0.6544
    >>

[pavlos]

Thank you for your response.

I am interested in indexing the sub variable with an automated process through a for loop.

I want 3 separate matrices, for example maybe something like this:

for i=1:3

sub(i) = C{i,1}...

end

and the result will be

sub1=...

sub2=...

sub3=...

Each sub would refer to matrix with different number of rows.

[per isakson]

See http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F