0 votes

Hi,
This seems not to work as intended:
>> str2num('"Y"')
ans =
"Y"
This should return an empty array.

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dpb
dpb le 13 Mai 2020
Can't reproduce that here w/ R2019b. Which release?
Tried clear str2num yet first?
Arjan Lampe
Arjan Lampe le 13 Mai 2020
R2018b
No, I didn't name a variable str2num
goerk
goerk le 13 Mai 2020
I can reproduce the behaviour with R2017b.
Image Analyst
Image Analyst le 13 Mai 2020
Modifié(e) : Image Analyst le 13 Mai 2020
In r2020a:
>> str2num('"Y"')
ans =
[]
as expected, since it's not a number. So the best answer is to upgrade. Can you do that? Are you on the maintenance plan?
Arjan Lampe
Arjan Lampe le 13 Mai 2020
Well, my company is, but I've just merged to R2018b a month ago or so. So upgrading is not going to happen soon... Anyway, I'll work my way around it then.

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 Réponse acceptée

Fangjun Jiang
Fangjun Jiang le 13 Mai 2020

0 votes

Seems that way.
>> version
ans =
'9.5.0.1298439 (R2018b) Update 7'
>> str2num('"Y"')
ans =
"Y"
>> version
ans =
'9.7.0.1319299 (R2019b) Update 5'
>> str2num('"Y"')
ans =
[]

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