Why does char give me an empty output?
11 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Geri Spinosa
le 21 Sep 2015
Modifié(e) : Stephen23
le 21 Sep 2015
>> b=[1,2,3,4,5]
b =
1 2 3 4 5
>> char(b)
ans =
this is what I enter and the output is five little empty boxes. I've tried this with several numeric vectors and matrices and it does the same thing with varying numbers of boxes. It also does this if I manually input the vector. It was working previously, and then it wasn't I'm not sure what I'm doing wrong
0 commentaires
Réponse acceptée
James Tursa
le 21 Sep 2015
Modifié(e) : James Tursa
le 21 Sep 2015
Characters for ASCII codes 1, 2, 3, 4, 5 are all unprintable characters, so nothing prints. The conversion did take place, but the result is not printable (displayable). The characters are:
1 01 SOH Start of heading
2 02 STX Start of text
3 03 ETX End of text
4 04 EOT End of trans.
5 05 ENQ Enquiry
Plus de réponses (2)
Joseph Cheng
le 21 Sep 2015
char() converts the values into the 7-bit ASCII characters. use num2str() or the other equivalent functions to convert numbers to a string.
C.J. Harris
le 21 Sep 2015
This is because ASCII characters 1 to 7 are not visible characters.
0 commentaires
Voir également
Catégories
En savoir plus sur Data Type Conversion dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!