MATLAB: How to delete a row of numbers in which the number in the first column is less than a threshold

columndata filedeletefilematrixremoverowtext;vector

How can I delete a row of numbers in which the number in the first column is less than a threshold?

glass half empty

X(X(:,1)<10,:) = [];

glass half full

Y = X(X(:,1)>=10,:);

NewMatrix = YourMatrix(YourMatrix(:,1)~=0, :);

You can just do this: (removing all entries larger in absolute value than 2)

x = randn(10,10);
indices = find(abs(x)>2);
x(indices) = [];

But then x will be a vector and no longer a matrix of the same size you started with:

You can also do this:

    x = randn(10,10);
    indices = find(abs(x)>2);
    x(indices) = NaN;

This will maintain your matrix.