Classify numbers in a vector

Hello, I got a problem when dealing with numbers classifying in a vector. Problem is like that:

With a vector A = [1 2 3 4 5 9 10 13 15 17 18 19 21 24];

I try to separate the consecutive series and non-consecutive series so that I am able to have outputs like:

a=[1 2 3 4 5]

b=[9 10]

c=[13]

d=[15]

..etc

I tried diff() and regexp (), but I still can't solve it.

If anyone can help, it would be greatly appreciated.

Thank you!

Answer 1

[Stephen23]

Here is a simple solution in just two lines:

>> A = [1 2 3 4 5 9 10 13 15 17 18 19 21 22  24 25];
>> idx = find([true,1~=diff(A),true]);
>> out = arrayfun(@(x,y)A(x:y),idx(1:end-1),idx(2:end)-1,'UniformOutput',false);
>> out{:}
ans =
     1     2     3     4     5
ans =
     9    10
ans =
    13
ans =
    15
ans =
    17    18    19
ans =
    21    22
ans =
    24    25

Answer 2

[Azzi Abdelmalek]

A = [8 1 2 3 4 5 9 10 13 15 17 18 19 21 22  24 25];
ii=[1 diff(A)];
idx1=[1 find(ii~=1)];
idx2=[idx1(2:end)-1 numel(A)]; 
out=arrayfun(@(x,y) A(x:y),idx1,idx2,'un',0);
celldisp(out)