size gives contradictory results

Question

Miguel Garcia 2016-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/268900-size-gives-contradictory-results

评论： Miguel Garcia 2016-2-18

采纳的回答： MHN

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Dear all,

I have a vector called "centers" which should be 1x26. When I call "whos centers" I obtain:

>> whos centers

Name         Size            Bytes  Class     Attributes
centers      1x26              208  double

Which makes sense. When I type "centers" the whole vector is displayed, and its size is 1x26. When I call "size(centers, 2)" I obtain 26, which also makes sense. However, when I call "size centers" I obtain:

>> size centers

 ans =
     1     7

Also, when I type "length centers" I obtain:

>> length centers

 ans =
     7

Does anybody understand what is happening here? I am quite puzzled.

Thank you very much,

Miguel

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Answer 1

MHN 2016-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/268900-size-gives-contradictory-results#answer_210385

编辑：MHN 2016-2-18

在 MATLAB Online 中打开

If you want the size of your vector you should use the following comment:

size(centers)

"size centers" shows the size of word "centers"! Also the same for the "length". size(centers, 2) returns the size of second dimension (26). size(centers, 1) returns the size of the first dimension (1).