Why does length sometimes read the number of columns instead of the number of rows?

Hello, I`m looping over the length of a table (converted to array to be 'double'). However, sometimes the length reads the rows and when run again sometimes it reads columns! Why is this happening? Thanks

Answer 1

[Chad Greene]

length just tells you the longest dimension. If you're talking about a table (the piece of furniture), its length is always its longest dimension. To get just the number of rows or columns, do

 rows = size(X,1);

or

 cols = size(X,2);

[Chad Greene]

Can you provide a minimal working example?

Answer 2

[Jan]

Whenever you have a question concerning a command, start at the documentation:

doc length

or https://www.mathworks.com/help/matlab/ref/length.html

There you find these 2 initial lines:

length
Length of largest array dimension

Sounds clear :-)

Answer 3

[Yasmin Samy]

thanks all!