matlab mean (A,3)

matlab mean (A,3) matlab中 mean(A,2) 怎么运算 matlab中有关mean的问题matlab中mean(mean(mean(I))) I是一幅彩色图像 matlab中语句mean(varargin{i}(: 关于MATLAB mean函数的问题!A=[1 3 4 5; 2 3 4 6;1 3 1 5]对矩阵A求平均,mean(A):如果是求平均的话,答案应该是：1.3333 3.0000 3.0000 5.3333为什么我这显示的答案是：4 9 9 16请问有人碰到这种情况没有?>> A=[1 3 I mean it ,you a mean matlab 中mean(x(i:(i+N-1))) 请问MATLAB求平均数 不用 sum 或mean matlab中mse(i)=mean(c(i,:).^2,2)-mean(c(i,:),2). Matlab A（：,：, Mean mean You mean a lot to we think you mean a lucky girl.意思mean MATLAB A=fix(15*rand(3, matlab 提示Error using vertcat CAT arguments dimensions are not consistent.for i=1965:1:1970 for j=1:12 a=find(a1(:,2)==i&a1(:,3)==j); b=a1(a,:); c=mean(b(:,5)); d=[d;i,j,c]; end end提示矩阵维度出错,可是维度应该并没有出错啊,我 for a certain exam,a score of 58 was 2 standard deviations below the mean and a score of 98 was 3 standard deviations above the mean .what was the mean score for the exam for a certain exam,a score of 58 was 2 standard deviations below the mean and a score of 98 was 3 standard deviations above the mean .what was the mean score for the exam