How can i divide data into equal parts?

Suppose we have data from 1:1:100.... I want to divide it such that one variable have data r1=1:1:25 another r2= 26:1:50, r3= 51:1:75 and r4= 76:1:100 .... How can i do this dynamically so I can access r1 in first iteration of loop r2 in second and so on..?

Answer 1

[Stephen23]

V = 1:100;
C = mat2cell(V,1,[25,25,25,25]);
C{1} % C{2}, etc.

ans = 1×25

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

[shubham shubham]

isn't there any way where we don't have to do [25,25,25,25] this part as it will change if amount of data and there partition point changes ?

[Stephen23]

"isn't there any way where we don't have to do [25,25,25,25] this part as it will change if amount of data..."

Either you can generate that vector using the size of the input data, or use a different approach e.g. reshape and num2cell:

V = 1:100;
C = num2cell(reshape(V,[],4).',2);
C{1}

ans = 1×25

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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[shubham shubham]

could you tell me how I can create [25,25,25,25] this vector dynamically by giving the number of divisons is 4 for this and 25 ie the value in the vector?

[Stephen23]

V = 1:100; % data
B = 4; % required number of blocks
N = numel(V);
X = N*ones(1,B)/B

X = 1×4

25 25 25 25

Of course if N is not exactly divisible by B then you will need to decide on how to split the data into differently-sized blocks, possibly using linspace or rounding or similar.

[shubham shubham]

thanks soo much