MATLAB Answers

how can partition a vector into smaller sub sequences

1 view (last 30 days)
Hi,
how can partition a vector into smaller sequences: for example, let A is a vector of 179901, N is another vector consists of 204 elements. I want to partition A into several sub sequences according to values of vector N such that
seq1=A(1:N(1))
seq2=A(1+N(1):N(1)+N(2))
seq3=A(1+N(1)+N(2):N(1)+N(2)+N(3))
and so on for other sequences
how can do this, I use MatlabR2017a. Thanks in advance

Accepted Answer

Stephen Cobeldick
Stephen Cobeldick on 7 Apr 2021
Edited: Stephen Cobeldick on 7 Apr 2021
A = 1:19;
N = [3,5,7];
S = mat2cell(A(1:sum(N)),1,N)
S = 1×3 cell array
{[1 2 3]} {[4 5 6 7 8]} {[9 10 11 12 13 14 15]}
Or
V = cumsum([0,N]);
F = @(b,e)A(1+b:e);
S = arrayfun(F,V(1:end-1),V(2:end),'uni',0)
S = 1×3 cell array
{[1 2 3]} {[4 5 6 7 8]} {[9 10 11 12 13 14 15]}

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!