Creating a new matrix from an existing matrix

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Claire
Claire 2015-1-21
评论： Claire 2015-1-21
My original matrix is a 4x6 matrix. However, I need to extract part of this matrix to make a new 3x4 matrix. For this new matrix, I only need the first, second, and fourth row and the first, second, fourth, and sixth columns from the original matrix. How would I go about creating this new matrix? Thank you!

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Image Analyst
Image Analyst 2015-1-21
编辑：Image Analyst 2015-1-21
m2 = m([1,2,4],:); % Extract rows 1, 2, and 4;
m2 = m2(:, [1, 2, 4, 6]); Now extract columns 1,2,4,& 6

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