matlab error

Question

mohan gopal 2011-11-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/20647-matlab-error

respected sir/mam

i have formulated coding for rayleigh fading algorithm in matlab

for i=1:25
  g(i)=(h2(i)^2)/(h1(i)^2);
  disp(abs(g(i)));
  R(i)=log2(1+(1*abs(h1(i)^2)/0.2*abs(h4(i)^2)));
  disp(R(i));
  plot(abs(g(i)),abs(R(i)));
end

i got the x and y values plotted in the output but no plotting of values in graph pls help me simulate this prblm , thanks in advance

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Answer 1

Image Analyst 2011-11-8

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https://ww2.mathworks.cn/matlabcentral/answers/20647-matlab-error#answer_27261

You would need to call "hold on" after you've made the first call to plot. Otherwise a new call to plot blows away your previous stuff.

But rather than plotting each and every point one at a time, I'd recommend plotting the whole array in one single call to plot() after your loop has finished.

Also, I believe you can edit your post to pick a more descriptive subject line than "matlab error" such as "plotting trouble" or something like that.