See my function "seqle" on FileExchange. It may not be as compact, but it's easy to use and both encodes and decodes.
The problem statement would have been clearer if the principle of RLE had been explained with an encoding example first. Alternatively, it would have been useful to explicitly mention that the data in vector x is being read pairwise.
ugly but more fun than loops!
note: repelem did not exist back when this problem was created
not limited to 1-9
This is my favourite
Best score without regexp
Indexed Probability Table
Sum of first n terms of a harmonic progression
Remove the two elements next to NaN value
Doubling elements in a vector
Wind Chill Computation
DNA N-Gram Distribution
Clean the List of Names
Test for balanced parentheses
Find state names that end with the letter A
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