# How to select 10% of a matrix with an increment of 10% until 80%

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Joana on 23 Feb 2021
Edited: KALYAN ACHARJYA on 23 Feb 2021
Hi
I have a matrix x with size 200x353. I need to sleect 10% of the matrix with an incerement of 10% until 80%, so something like 10:10:80. And the run some analysis on the selected data.
ANy help on how to do that.?
Thanks

KALYAN ACHARJYA on 23 Feb 2021
Edited: KALYAN ACHARJYA on 23 Feb 2021
Note that the data are overlaping in each segment as per the requirements
1st cell 1% of data
2nd Cell 10% of data
3rd Cell 20% of data
.....
If data are non overlaping case,it can be easiliy achieved using mat2cell.
One Attempt: Do modify accordingly
data=randi(100,[200,353]);
[r,c]=size(data);
r=1:round(r/10):r;
c=1:round(c/10):c;
data_seg=cells(1,8);%80 for 8
for i=1:length(1:8)
data_seg{i}=data(1:r(i),1:c(i));
end
data_seg
##### 2 CommentsShow 1 older commentHide 1 older comment
KALYAN ACHARJYA on 23 Feb 2021
Edited: KALYAN ACHARJYA on 23 Feb 2021
how can i save the rest of 99 90 80 70...20% of the total data.?
reverse the same, start from last
end:decrement:1
2md: please ensure that arary size must be rantangular shape (It can't be arbitary shape)

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