The **-s** option
^^^^^^^^^^^^^^^^^

**Syntax**

**-s**\ [*cols*][**+a**][**+r**]
    Suppress output of data records whose *z*-value(s) equal NaN.

**Description**

The **-s** option can be used to suppress output for records whose *z*-value equals NaN [default outputs all records].
Optionally, supply a comma-separated list of all *output* columns or column ranges to consider for this NaN test [default only
considers the third output data column (i.e., *cols = 2*)]. Column ranges must be given in the format
*start*\ [:*inc*]:*stop*, where *inc* defaults to 1 if not specified. The following modifiers are supported:

- **+r** - Reverse the suppression, i.e., only output the records whose *z*-value equals NaN.
- **+a** - Suppress the output of the record if just one or more of the columns equal NaN [default skips record only
  if values in all specified *cols* equal NaN]
