String select specific positions

6 vues (au cours des 30 derniers jours)
Patrick Brown
Patrick Brown le 31 Jan 2017
Réponse apportée : Jan le 31 Jan 2017
Hi, I have a cell (Numbers) with different values and I have a vector with the positions I want to take (NumbersSelect) When I write a=Numbers{NumbersSelect} I only get in the variable a the first number I want to select I have developed a for loop in order to take all the numbers there is a way to do it without a for loop ??? thanks

Réponses (2)

Adam
Adam le 31 Jan 2017
a = [ Numbers{NumbersSelect} ];
  2 commentaires
Patrick Brown
Patrick Brown le 31 Jan 2017
thanks :) but in the case of a string all the values will be together without spaces
Star Strider
Star Strider le 31 Jan 2017
If you have spaces in your original string, first use a regexp call to create a cell array of strings from the individual words:
str = 'I have a string';
strc = regexp(str, '\ ', 'split')
strc =
1×4 cell array
'I' 'have' 'a' 'string'
That should work with Adam’s code. If you have something else that wouldn’t work with this approach, you need to share it with us.

Connectez-vous pour commenter.


Jan
Jan le 31 Jan 2017
Perhaps you mean:
a = Numbers(NumbersSelect)
or
a = sprintf('%s ', Numbers{NumbersSelect})
If this does not help, please post some real example data and the wanted output in valid Matlab syntax.

Catégories

En savoir plus sur Characters and Strings dans Help Center et File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by