matlab 怎麽畫股票成交量五日均線？

clc;clear

mday(x,y,5,'r-.')

函數程序

function ymean = mday(x,y,m,color)

n = size(x,1);

ymean = zeros(n-m+1,1);

for i = m:n

ymean(i-m+1,1) = mean(y(i-m+1:1:i,1));

end

plot(x(m:1:n),ymean,color)

end