Having problems transposing a large vector.

5 次查看(过去 30 天)
I came across a puzzling issue today. When trying to transpose a column vector (86400048x1) into a row vector, MATLAB seems to transpose the vector (variable shows up as 1x86400048), but the vector does not show up when I select the variable. The area where matrices usually show up is simply empty. To troubleshoot, I tried to index out portions of the vector (split into ten ~equal pieces), and then combine each piece again. I was able to combine the vector to get a 1x85000000 row vector, but can't add much more without the same issue occurring. Any ideas as to what is going on here?
  2 个评论
Muthu Annamalai
Muthu Annamalai 2015-7-17
How much RAM do you have on your machine?
I see you have a (659 MB) ~3/4 GB vector in memory if all this is native double type vector.
Maybe this is causing some display issues ?
But a screenshot maybe useful here.

请先登录,再进行评论。

采纳的回答

per isakson
per isakson 2015-7-17
编辑:per isakson 2015-7-17
I can reproduce (on R2013b,32GB,64bit) the problem you see. Rows exceeding a certain size are not displayed in the "Variables editor". In my case r2 is shown, r4 is not. And the column vector, c2, is not shown
c2 172800096x1 1382400768 double
r2 1x17280008 138240064 double
r4 1x34560016 276480128 double
I fail to find upper limits mentioned in the documentation. However, there are obviously such limits.

更多回答(0 个)

类别

Help CenterFile Exchange 中查找有关 Logical 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