how to clip column into vectors with the rules I set

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ZHEN XU
ZHEN XU 2020-9-18
编辑： Stephen23 2020-9-24
I wanna clip the 2nd column while the first cloumn increased by 10 each time. Note: the output vector length of 2nd column between 10 and 20 could be different. For example, the matrix
A =
1.0000 0.3000
5.2000 0.8000
9.2000 95.0000
17.8500 21.0000
19.5600 78.0000
20.5800 9.2300
25.0000 8.0000
28.0000 9.6500
29.1200 45.0000
Output:
B1 =
0.3000
0.8000
95.0000
B2 =
21
78
B3 =
8.0000
9.6500
45.0000
How should I do this? Thank you.

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回答（1 个）

Stephen23
Stephen23 2020-9-24
编辑：Stephen23 2020-9-24
>> [~,~,idx] = unique(floor(A(:,1)/10));
>> out = accumarray(idx,A(:,2),[],@(v){v});
>> out{1}
ans =
0.3000
0.8000
95.0000
>> out{2}
ans =
21.0000
78.0000
>> out{3}
ans =
9.2300
8.0000
9.6500
45.0000
https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-cell-array.html

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