Select specific row from array, then subsequent rows based on input

[hiNI]

Hello,

I have an array that contains 2 columns.  I would like to pick a specific row from the array based on the entry from column 1.  Also based on the # registers input, to pick subsequent rows from column 2.

Here is an example:

For the above entries in the block diagram, I would like to get this output:  0102 followed by the 2 rows in column 2: 0001 1003.  The overall output will be 010200011003.

Any help will be greatly appreciated!

[StevenD · Accepted solution]

Index the 2d array by columns, search column one for match(es) and get the index/indices. Loop over the index/indices and get the array subset from column 2. Transpose array, or concat instead of index as desired.