How do you change the look of a graph

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Chris Jordan 2015-5-16

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https://ww2.mathworks.cn/matlabcentral/answers/217062-how-do-you-change-the-look-of-a-graph

评论： Star Strider 2015-5-16

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Chris Jordan 2015-5-16

编辑：dpb 2015-5-16

在 MATLAB Online 中打开

The top plot is what my plot is supposed to look like, the bottom is what my plot actually looks like, hoe do I fix this. Here is my code:

distance = [1:1:7];
for x=1:length(distance)
  Tension(x)= (w*lc*lp)/(x*sqrt((lp^2)-(x^2)));
end
plot(distance,Tension,'-o')
title('Distance vs. Tension');
xlabel('Distance, (m)');
ylabel('Tension, (N)');
grid on;

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Star Strider 2015-5-16

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/217062-how-do-you-change-the-look-of-a-graph#answer_179333

在 MATLAB Online 中打开

I don’t have your constants so I can’t reproduce your exact results. This idea does what you want:

w  = 3;                 % Filling Missing Constants
lc = 5;                 % Filling Missing Constants
lp = 11;                % Filling Missing Constants
distance = [0:1:7];
for x=1:length(distance)-1
  Tension(x)= (w*lc*lp)/(x*sqrt((lp^2)-(x^2)));
end
distanceP = [zeros(1,length(distance)-1); distance(2:end)];
TensionP = [Tension; zeros(size(Tension))];
plot(distanceP,TensionP,'-o')
title('Distance vs. Tension');
xlabel('Distance, (m)');
ylabel('Tension, (N)');
grid on;

The ‘distanceP’ and ‘TensionP’ are plot matrices that create the correct x and y coordinates to plot. Their construction is relatively straightforward. Take a look at their structures to understand how they work, specifically how they plot each (x,y) pair. Note that it plots each column of each matrix against the corresponding column of the other, taking advantage of MATLAB using column-major addressing.