MATLAB: Selectring specifics rows of matrix

indexingmaskingMATLABmatrixrows

Hi!

I've got very irritating problem. I've got 259×399 matrix. I want to cut it, beacuse i need only rows from 26 to 104 of each column. How can i do that? Reshape isn't really working

Best Answer

It's just super basic MATLAB indexing. Try this:

smallerMatrix = fullMatrix(26 : 104, :);

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MATLAB: Help on txt file

Just make one combined cell, then use the function writecell().

Variablen_wert = {'A =' [38 70 102 134 166];'B =' [10];'C =' [10]};
writecell(Variablen_wert, 'temp.txt');

MATLAB: Gather data from two matrices depending on values shared in first column

With appending the found values:

match          = ismember(LargerMatrix(:, 1), SmallerMatrix(:, 1));
JoinedMatrix   = cat(1, SmallerMatrix, LargerMatrix(match, :));
[dummy, Index] = sort(JoinedMatrix(:, 1));
SortedMatrix   = JoinedMatrix(Index, :);

Or creating the mean over the values:

[match, loc] = ismember(LargerMatrix(:, 1), SmallerMatrix(:, 1));
SmallerMatrix(loc, 2:end) = (SmallerMatrix(loc, 2:end) + LargerMatrix(match, 2:end)) * 0.5;

Best Answer

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MATLAB: Help on txt file

MATLAB: Gather data from two matrices depending on values shared in first column

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