how to find the largest number in the first 13 number in an array?

in a new array, i need to exract the largest number in the first 13 numbers in a certain array then the largest number in the 14 numbers and this process repeated

how can i write this in m file , please

Answer 1

[madhan ravi]

 max(reshape(array, [], 13))

[hassan elkholy]

thank you for your answer :)

this array (2000* 1) i need to extract the largest number in the first 13 row (this will be the first element )

then, the next element is the largest in the next 14 numbers

can you help me to write this

[madhan ravi]

 max(reshape([array(:); nan(13 - mod(numel(array), 13), 1)], [], 13)) % easier when you go 13 all the way through

[hassan elkholy]

where is the largest element in the next 14 numbers

[madhan ravi]

How are you supposed to divide a 2000 numbers array by 13, 14 and then what?

[hassan elkholy]

then the third element in the created array will be the maximum in the next 13 number and fourth is the largest in the next 14 numbers and so on

Answer 2

[Image Analyst]

Try this:

numElements = 154*13;
data = rand(numElements, 1); % random numbers from 0 to 1
data2D = reshape(data, 13, [])'
theLargest = max(data2D, [], 2);
plot(theLargest, 'b.-', 'LineWidth', 2);
grid on;
xlabel('Set of 13');

Do you rather need to alternate 13, 14, 13, 14, 13, 14, etc.?

[hassan elkholy]

thank you for your answer, yes i need that

[Image Analyst]

Looks like you figured it out since you've accepted Madhan's answer, so I won't spend my time on it.