I have a data set of 400 columns and 644rows .I need to select columns 1,2,11,12,​21,22,....​.381,382,3​91,392 or move these particular columns in to a matrix.how can i write code for this in matlab

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Sindhu Reddy
Sindhu Reddy 2016-3-30
评论： Azzi Abdelmalek 2016-3-30
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20. from this columns i need to select 1,2,11,12 columns in to one matrix and the remaining in to another matrix. 20 is just an example..i want the answer for 400 columns and 644 rows.

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采纳的回答

Roger Stafford
Roger Stafford 2016-3-30
If M is the matrix with 400 columns, and if M2 is the matrix to be obtained from it, do this:
n = 400;
M2 = M(:,mod((1:n)-1,10)<=1);

更多回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2016-3-30
编辑：Azzi Abdelmalek 2016-3-30
A=[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
idx=[1,2,11,12]
out1=A(idx)
out2=A(setdiff(1:numel(A),idx))
MHN
MHN 2016-3-30
编辑：MHN 2016-3-30
A = 1:20;
M1 = A([1,2,11,12]);
M2 = setdiff(A,M1);

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