Selecting the last value of a column

Question

I have a spreadsheet with some values in column G. Some cells are empty in between, and I need to get the last value from that column into another cell.

Something li

Answer 1

It looks like Google Apps Script now supports ranges as function parameters. This solution accepts a range:

// Returns row number with the last non-blank value in a column, or the first row
//   number if all are blank.
// Example: =rowWithLastValue(a2:a, 2)
// Arguments
//   range: Spreadsheet range.
//   firstRow: Row number of first row. It would be nice to pull this out of
//     the range parameter, but the information is not available.
function rowWithLastValue(range, firstRow) {
  // range is passed as an array of values from the indicated spreadsheet cells.
  for (var i = range.length - 1;  i >= 0;  -- i) {
    if (range[i] != "")  return i + firstRow;
  }
  return firstRow;
}

Also see discussion in Google Apps Script help forum: How do I force formulas to recalculate?