滑动均滤波时，代码没出错但是一直显示无法识别数据

load D:\SHUxuejianmo\dianya.mat
T =dianya.mat;
figure(1)
plot(T,'-*')
hold on;
%%
%滑动平滑滤波
L = length(T);
N=10; % 窗口大下
k = 0;
m =0 ;
for i = 1:L
m = m+1;
if i+N-1 > L
break
else
for j = i:N+i-1
k = k+1;
W(k) = T(j) ;
end
T1(m) = mean(W);
k = 0;
end
end
plot(T1,'r-o')
grid
legend('原始数据','滤波之后')

数据格式是否正确