nnmf function usage problem
显示 更早的评论
hi all, i am trying to use nnmf function. i have a 3000x4000 sized variable named resim.it has all nonnegative values. i just wrote: [a,b]=nnmf(resim,100);
it gives an error just like this: Error using \ Linear algebra is not supported for integer data types. To compute elementwise LDIVIDE, use LDIVIDE (.\) instead.
Error in nnmf>nnmf1 (line 296) h = max(0, w0\a);
Error in nnmf/loopBody (line 258) [whtry{3},whtry{4},whtry{1}] = ...
Error in internal.stats.parallel.smartForReduce (line 128) reduce = loopbody(iter, S);
Error in nnmf (line 180) whbest = internal.stats.parallel.smartForReduce(...
do you have any idea what the problem is? thank you.
采纳的回答
Tom Lane
2012-10-12
1 个投票
Most Statistics Toolbox functions aren't written to operate on integer data types. Try nnmf(double(resim),100) to convert to double precision. You may be able to use single() instead, if double() needs too much memory.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 AI for Signals 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
