public Integer getCountNan() {
        return this.countNan;
    }
<p>
The number of NAN (not a number) values in the field. If the response value is -1, refer to
<code>CountNanLong</code>.
</p>

@return The number of NAN (not a number) values in the field. If the response value is -1, refer to
        <code>CountNanLong</code>.
aws-java-sdk-forecast/src/main/java/com/amazonaws/services/forecast/model/Statistics.java