Putting Consecutive numbers into variables

1 vue (au cours des 30 derniers jours)
DARLINGTON ETAJE
DARLINGTON ETAJE le 4 Juil 2019
Commenté : Walter Roberson le 18 Juil 2019
I data in this format a=[1;2;3;7;0;6;7;8;9;2;4;3;14;15;16;17;0;9;2];
what I need to accomplish is to put consecutive numbers into different variables...
in this case the expected outcome is a1=[1;2;3]; a2=[6;7;8;9]; a3=[14;15;16;17]; How do I
  1 commentaire
Stephen23
Stephen23 le 4 Juil 2019
Modifié(e) : Stephen23 le 4 Juil 2019
"what I need to accomplish is to put consecutive numbers into different variables... "
Do NOT do this. Dynamically accessing variable names is one way that beginners force thmeselves into writing slow, complex, obfuscated, buggy code that is hard to debug:
Your code will be simpler and much more efficient if you simply use one container variable (e.g. a cell array, as my answer shows).

Connectez-vous pour commenter.

Réponse acceptée

Stephen23
Stephen23 le 4 Juil 2019
Modifié(e) : Stephen23 le 4 Juil 2019
>> A = [1;2;3;7;0;6;7;8;9;2;4;3;14;15;16;17;0;9;2];
>> D = diff([false;diff(A(:))==1;false]);
>> F = @(b,e)A(b:e);
>> C = arrayfun(F,find(D>0),find(D<0),'UniformOutput',false);
>> C{:}
ans =
1
2
3
ans =
6
7
8
9
ans =
14
15
16
17
You can access the data in the cell array C using basic indexing:
  3 commentaires
DARLINGTON ETAJE
DARLINGTON ETAJE le 18 Juil 2019
F = @(b,e)A(b:e);
Please explain what b and e mean
are they variables...I don't know how to use them for a new dataset
Walter Roberson
Walter Roberson le 18 Juil 2019
b and are are dummy parameter names, similar to
function result = F(b, e)
result = A(b, e)
end

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Creating and Concatenating Matrices 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!

Translated by