create cell array containing neighbour element

Hi,

i have a matrix gnbh(ngex2). My first column gives me the index in -x direction and my second in +x direction.

I start with first_element = find(gnbh(:,1)==0)

now i want to add to a matrix my second_element = gnbh(first_element,2) for each first element in a row. my third element will be

third_element = gnbh(second_element,2) and fourth_element = gnbh(third_element,2) and so on.

input = gnbh(ngaps,2)
0	10
0	11
0	12
0	13
0	14
0	15
0	16
0	17
0	0
1	18
2	19
3	20
4	21
5	-1
6	0
7	22
8	23
10	24
11	25
12	26
13	27
16	29
17	30
18	31
19	32
20	33
21	34
-1	35
22	37
23	38
24	40
25	41
26	43
27	-1
28	44
0	45
29	46
30	47
0	48
31	0
32	49
0	50
33	-1
35	51
36	52
37	0
38	54
39	55
41	-1
42	-1
44	0
45	59
0	60
47	61
48	62
0	63
-1	0
0	65
52	66
53	67
54	0
55	69

attention: if the second column is 0 i will continue with the next cell array.

my output will be a cell where every cell matrix shows me my 1st element my 2nd and so on until the last element ) in a row

e.g. output = cell = number of first elements x 1

and every cell contains a row matrix starting with my 1st element e.g 1x1 = [1 10 18 25 32 41 0], 1x2 = [2 11 19 26 33 42 52 63 0]

[KALYAN ACHARJYA]

Sorry, the question is still unclear to me? Could you please add small example with expected output?

[bbah]

my question is how do i jump to the next element to get the next element

my input is the matrix above
for i = 1:length(first_elements_withngb)
j = first_elements_withngb(i)
next_element = gnbh(j,2)
element_row{i,1} = [j next_element]
end
here now i got my cell with my first and second element
e.g
[1,10]
[2,11]

as you can see i started with my first element of "my_first_elements_withngb" (here called "j") and got the second element and added it to my cell array.

Now i need to set my next element as my "j" and add the next element to my cell array. i hope it was clear this time