please i need all iteration in one vector

clear,clc
data=xlsread('standing.xlsx');
accy=data(:,2);
inc=120;
for i=1:inc:length(accy)-rem(length(accy),inc);
    j=i+inc-1;
    dev =std(accy(i:j,:))
end

Answer 1

[Kuifeng]

 inc = 120;
accy(length(accy)-rem(length(accy),inc)+1:end) = [];
accy_2D = reshape(accy, inc, (length(accy)-rem(length(accy),inc))/inc);
dev = std(accy_2D);

[amr atyia]

thank you very much you are a professional it's okay but i don't understand the code

[Kuifeng]

the second line removes the numbers after the row 1201.

The third line reshape this one vector to a 2D-Array with 120 rows, and 10 columns.

The last calculate std in each column