Element-wise array replication in Matlab

by

I’m a fan of the KRON function:

>> a = 1:3;
>> N = 3;
>> b = kron(a,ones(1,N))

b =

    1     1     1     2     2     2     3     3     3

You can also look at this related question (which dealt with replicating elements of 2-D matrices) to see some of the other solutions involving matrix indexing. Here’s one such solution (inspired by Edric’s answer):

>> b = a(ceil((1:N*numel(a))/N))

b =

    1     1     1     2     2     2     3     3     3

More Related Contents:

  1. Element-wise array replication according to a count [duplicate]
  2. Repeat copies of array elements: Run-length decoding in MATLAB
  3. how to repeat array and string [closed]
  4. Generate a matrix containing all combinations of elements taken from n vectors
  5. Linear indexing, logical indexing, and all that
  6. arrayfun can be significantly slower than an explicit loop in matlab. Why?
  7. Using transpose versus ctranspose in MATLAB
  8. How do I do multiple assignment in MATLAB?
  9. MATLAB adding array elements iteratively: time behavior
  10. Creating Indicator Matrix
  11. In MATLAB, when is it optimal to use bsxfun?
  12. Array of Matrices in MATLAB
  13. How do i define a structure in Matlab
  14. What is the advantage of linspace over the colon “:” operator?
  15. In an assignment A(:) = B, the number of elements in A and B must be the same
  16. How to use cell arrays in Matlab?
  17. how to replicate an array
  18. Is there anything like deal() for normal MATLAB arrays? [duplicate]
  19. convert string to number array in matlab
  20. How do I iterate through each element in an n-dimensional matrix in MATLAB?
  21. Is indexing vectors in MATLAB inefficient?
  22. How do I remove elements at a set of indices in a vector in MATLAB?
  23. Vector norm of an array of vectors in MATLAB
  24. Is A==0 really better than ~A?
  25. Difference between List and Array types in Kotlin
  26. Is it possible to fill an array with row numbers which match a certain criteria without looping?
  27. Excel VBA: Range to String Array in 1 step
  28. Setting arrays in Firebase using Firebase console
  29. Element-wise string concatenation in numpy
  30. How to copy an array in Bash?

Leave a Comment