Why help on 'str' yield help on 'std'?

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Alon Rozen
Alon Rozen el 29 de En. de 2017
Comentada: Steven Lord el 30 de En. de 2017
Hi all,
When I want to check if a name for a new variable I want to use is already part of Matlab language I just seek help on that word (hopping to get 'word' not found). I guess this is a common practice.
I tried to use this technique with the word 'Str' (short name for a string) and got help on the known function 'std'. Either it is a bug or part of Matlab attempt to guess typos. In both cases, it doesn't help...
Is it a typo correction? Is it a bug?
Thanks,
Alon
  1 comentario
Walter Roberson
Walter Roberson el 29 de En. de 2017
Yes, occasionally MATLAB does clean up typos or redirect one word to the MATLAB equivalent of that concept. On occasion (not often) I have seen it direct to help that contained a copy of the word I had typed in.

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Stephen23
Stephen23 el 29 de En. de 2017
Editada: Stephen23 el 29 de En. de 2017
Don't use help to check if a name is already used: the best function for this is which:
which str
which str -all
For example:
>> which str
'str' not found.
>> which std
C:\Program Files\MATLAB\R2010b\toolbox\matlab\datafun\std.m
  3 comentarios
Stephen23
Stephen23 el 29 de En. de 2017
@Alon Rozen: I suspect that help is trying to, err, help, by providing some spelling correction.
Steven Lord
Steven Lord el 30 de En. de 2017
This feature was introduced in release R2015b. It is not a bug.

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