Approaching or Crossing a half and whole number

As best I can imagine the code would need to read the current close, then apply a formula to round that to a specific increment, than compare the current close to the result of that formula. Once you include stocks above $100 or below $10 the code completely fails. So then you have to add more complexity and we are well beyond the scope of anything I can provide at no charge in the Q&A forum.

Best you can do for free is to hard code this to a specific dollar amount and apply a top level filter that restricts the scan result to the very narrow range of $19.00 through $19.99. You would need to create a separate scan for each price range you want to cover.

The scan would look like this:

plot scan = close > 19.25 and close < 20.0;

Or

plot scan = close > 19.50 and close < 20.0;