covariance calculation of a square matrix of any size

2 次查看（过去 30 天）
x
x 2011-9-3
评论： Hemal 2013-10-30
if cov command is directly aplied to a cameraman image for 3 by 3 matrix .the o/p is not obtained ???
156 159 158
160 154 157
156 159 158
Error using ==> bsxfun Mixed integer class inputs are not supported.
Error in ==> cov at 93 xc = bsxfun(@minus,x,sum(x,1)/m); % Remove mean
Error in ==> Untitled at 12 d=cov(g);
what will be the reason

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2011-9-3
cov() only works on floating point inputs. Use cov(double(g))

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by