MATLAB: How to link all points on plot

image processinginperpolationsnonlinearplot

I have a small issue, how to link various nonlinear points within loop functions-for example y=0;

for k=1:10

    y=k*2+k^3;
    plot(y,k,'o-');
    hold on;

end

hold off;

The Plot result is as follows. I want to connect all those points. I have little knowledge of interpolations (interp1).

is

Best Answer

Don't put them in loop....calculate all y at once...

k=1:10 ;
y=k*2+k.^3;
plot(y,k,'o-');

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MATLAB: How to plot all values in the IF loop

Instead of the call to figure, call subplot() instead.

rows = ceil(sqrt(length(Y) - 2)); % Can put this line outside the loop
subplot(rows, rows, k-1); % In the loop, replace figure with this line.

This will make an array of several graphs (axes) all on the same figure.

If you want them all on the same graph/axes, then don't call subplot() at all, but call hold on after plot, and use && instead of &.

function [Peak] = findLocalMaxThreshold(X,Y)
for k = 2:length(Y)-1
	if (Y(k) > Y(k-1) && Y(k) > Y(k+1) && Y(k) >100)
		plot(X,Y,X(k),Y(k),'r*')
		hold on;
	end
end
hold off;
end

MATLAB: How to plot this figure？

REad about stem.

y = rand(1,10) ; 
stem(y)
xlabel('x')
ylabel('y')

Best Answer

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MATLAB: How to plot all values in the IF loop

MATLAB: How to plot this figure？

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