plot mean of vector v(1:i)

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Thales 2018-12-11

编辑： Stephen23 2018-12-11

For simplicity, I have the following code

v=1:10;
for i=1:10
    mean_v(i) = mean(v(1:i));
end
plot(v,mean_v)

In essence, I want to plot the mean of the vector from elements 1 to i, as a function of the i-index. Any way I could do it in one line?

plot(v,mean(v(1:?)))

What should I change in the mean(v(1:?)) part?

Stephen23 2018-12-11

编辑：Stephen23 2018-12-11

plot(v,cumsum(v)./(1:numel(v)))

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