creating Arrys from another big array

Hi, I have an array A of the size 1X1000. and i have a vector of Index: index=[1 25 40 63 77 99 100]

is there any easy way in matlab to create such arrays:

Arr1=(A(index(1)): A(index(2)))
Arr2=(A(index(2)): A(index(3)))
Arr3=(A(index(3)): A(index(4)))

and so on...

[Azzi Abdelmalek]

Post a small example

[Rica]

sorry i mad a mistake:this is the corrected question: Hi, I have an array A of the size 1X100 . and i have a vector of Index: index=[1 25 40 63 77 99 100]

is there any easy way in matlab to create such arrays:

Arr1=(A(index(1)): A(index(2)))
Arr2=(A(index(2)): A(index(3)))
Arr3=(A(index(3)): A(index(4)))

and so on...

Answer 1

[Thorsten]

 index=[1 25 40 63 77 99 100]
 A = rand(1,100);

 for i = 1:numel(index)-1
   B{i} = A(index(i):index(i+1));
 end

Note that the index(2), index(3), ... index(N-1) elements occur twice in B, such that B has numel(index) -2 elements more than A.

Answer 2

[Guillaume]

Another option to Thorsten's answer:

indices = [1 25 40 63 77 99 100];
A = rand(1, 100);
B = arrayfun(@(s,e) A(s:e), indices(1:end-1), indices(2:end), 'UniformOutput', false);

Note that it while it is possible to create variable names on the fly as in your example. It's a very bad idea. Using a cell array as in our answers is much better.