If I have a matrix, A = [1,2;3,4;5,6;7,8] How can I delete even rows, so I can get A = [1,2;5,6]
MATLAB: Removing row of matrix
matrix
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This is how I'd do it.
% Bounds
lb = [10 0 1];ub = [60 inf 4];% Simulate data
n = 1000;data = [randi(100,[n,1]) randn(n,1) rand(n,1)*10];% Apply conditions
idxrmv = any(bsxfun(@lt,data,lb) | bsxfun(@gt,data,ub),2);% Remove
data(idxrmv,:) = [];% print
fprintf('Removed row %3.0i\n',find(idxrmv));Use this FEX
load data.mat % attached above
ydata(end) = []; % your xdata/ydata do not match in length !
slope0 = struct('p', 1, 'x', [min(xdata) max(xdata)], 'v', [0 0]);% Download BSFK function here
% https://www.mathworks.com/matlabcentral/fileexchange/25872-free-knot-spline-approximation
pp = BSFK(xdata,ydata, 2, 3, [], struct('KnotRemoval', 'none', 'pntcon', slope0)); % Check
figurexi = linspace(min(xdata),max(xdata));yi = ppval(pp,xi)plot(xdata,ydata,'b',xi,yi,'r');for xb=pp.breaks xline(xb);endgrid on
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