MATLAB: Dividing a vector elements into n parts

findpeaksMATLAB

I have 'y' values which make up y-axis and 'x' values which makeup x-axis. x>y, and I can't manipulate the points in the graph so I want 1 value of 'y' for each 'x' so that I can manipulate the value of 'y' at that specific 'x'. How can I do it?

x and y are different vectors ('y' is not sorted) I have current points of 'x' with corresponding 'y'

Best Answer

Use interp1,

desiredY = interp1(currentX,currentY,desiredX)

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You can probably fix it. My guess is you defined the interface with pixel units. You probably want to use normalized units so you can use different screen sizes.

MATLAB: I want to divide x and y axis into 12 equal parts using grid lines with coordinates values seen visible in the respective places of x and y-axis

Do interpolation using x qith equal 12 parts. Read about interp1.

x = [0.05 0.05155 0.053266 0.055186 0.057362 0.059865 0.062803 0.066341 0.070755 0.076552 0.084804 0.098318 0.121708 0.125774 0.125797];
y = [0.05155 0.053266 0.055186 0.057362 0.059865 0.062803 0.066341 0.070755 0.076552 0.084804 0.098318 0.121708 0.125774 0.125797 0.125797];
% interpolation 
xi = linspace(min(x),max(x),12) ;
yi = interp1(x,y,xi) ;
scatter(xi, yi, '*', 'b');
hold all
line (xi, yi)
plot(xi, yi, 'r')
grid on
axis([0 0.18 0 0.18])

Best Answer

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MATLAB: Gui parts lost

MATLAB: I want to divide x and y axis into 12 equal parts using grid lines with coordinates values seen visible in the respective places of x and y-axis

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