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Selects a subset of rows from the input.
•Set Rows to the number of rows you want to output. If it is the same or greater than the number of rows in the input, then the input will be unaffected.
•Set Select depending on how you want the rows sampled.
•Check Disable sampling to turn off sampling. If sampling is disabled, the transform does nothing.
•If you are transforming a large dataset, then you can use Sample to test a small subset.
return $(Row Num) >= 1000 & $(Row Num) <= 2000 & $(Row Num) % 10 == 0;