Hello everybody,

I am looking for a fast and efficient way to convert a vector of non continous ascending numbers to continous numbers.

As an example:

The vector

`[4 20 35 22 10 49]`

should become

`[1 3 5 4 2 6]`

at the moment I'm using a for loop, look for the lowest number write the runtime index into the result vector and set the position in the original vector to an illegal value. I know this is not the best way but it was the only one I could think of.

Also I'm not doing a single vector at a time but doing this to the columns of a matrix.

Thank you

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