[R] How to select one value per row (different columns) from array

[peter dalgaard]

array[cbind(1:999,vector)]

-pd

On 01 Mar 2017, at 14:28 , Wolfgang Waser <waser at frankenfoerder-fg.de> wrote:

> Dear all,
> 
> I have to pick one value per row from an array, but from row to row from
> a different column. The column positions of the values for each row are
> stored in a vector.
> 
> array: 999 rows, 48 columns
> 
> vector: 999 values (each between 1 and 48) indicating for each row which
> value to pick from that row.
> 
> Is there a non-loop way to pick the 999 values from the array, probably
> using some form of ?apply?
> 
> 
> Thank you very much for help and suggestions!
> 
> Wolfgang
> 
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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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