Converting single column matrix into array with condition

Hey,

I want to convert 2701x1 vector matrix into 73x73,

condition: it should jump to next row when index value is equal to 1

for e.g:

a = [1,3,1,2,3,4,1,4,5,6]

so we should get output "c" as:

c =   
1,3 ; 
1 2 3 4 ;
1 4 5 6

so it is should jump to new row when index value is equal to 1, kindly help?

Answer 1

[Walter Roberson]

c = mat2cell(a, 1, diff([find(a == 1), length(a)+1]) ) .'

Note that you cannot do this as a plain numeric array, since numeric arrays cannot have rows of different sizes

[Hasan Parvez]

my matrix a is 2701x1

c = mat2cell(a, 1, diff([find(a == 1), length(a)+1]));

Error in tril121 (line 5)

[Walter Roberson]

c = mat2cell(a.', 1, diff([find(a.' == 1), length(a)+1]) ) .'