How to not draw some points of an interval( hmax and hmin )

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Antonella
Antonella le 11 Oct 2013
Commenté : Antonella le 15 Oct 2013
I have this function but i have to finish it. I have to say to matlab to not draw the points of the graph between hmax and hmin Can someone help me???
h = max(y); hmax = (percT/100)*h; hmin = (percB)/100*h;
for i=1:size(y,1) if y(i)> hmax y(i) = hmax; else if y(i)< hmin y(i) = hmin;
else.....how i have to finish???
Many thanks in advance!!!
  2 commentaires
sixwwwwww
sixwwwwww le 11 Oct 2013
Dear Antonella, Can you share complete code because information about variables like "y", "percT", "percB" and also which value you want to plot?
Antonella
Antonella le 15 Oct 2013
percT is 60 an percB is 30. the variable y rapresents the high of the graph (the graph is about a hand-written word). So i have to remove the middle part of this graph(word) so every point between 30-60% of the total high. Hope this is clearer! Many thanks in advance!

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Réponses (1)

Jonathan LeSage
Jonathan LeSage le 14 Oct 2013
You can use logical indexing to remove any values greater than and less than the desired bounds.
% Defining some arbitrary data
x = 0:0.05:2*pi;
y = sin(x);
% Defining some arbitrary bounds
hmax = 0.5;
hmin = -0.5;
y_bounded = y;
% Using logical indexing to replace all values > hmax with NaN
% When plotting, MATLAB ignores values that are defined as NaN
y_bounded(y_bounded > hmax) = NaN;
y_bounded(y_bounded < hmin) = NaN;
% Plot Results
plot(x,y,x,y_bounded,'o');
grid on;
legend('Orignal Data','Bounded Data');
Hope this helps!
  1 commentaire
Antonella
Antonella le 15 Oct 2013
thanks really much for the answer! I'll try and check if it's work! Anyway i have to use if, else if ecc...how i can translate what you wrote me in this way? is there the possibility to do this or not? Really many thanks ;)

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