IsMissingEvaluator (MeteoInfoLib 2.1 API)

```
public interface IsMissingEvaluator
```
A mix-in interface for evaluating if a value is missing.

从以下版本开始:

12/27/12

作者:

John

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`boolean`	`hasMissing()`	true if there may be missing data
`boolean`	`isMissing(double val)`	if val is a missing data value

- 方法详细资料
  - hasMissing
```
boolean hasMissing()
```
    true if there may be missing data
    
    返回:
    
    true if there may be missing data
  - isMissing
```
boolean isMissing(double val)
```
    if val is a missing data value
    
    参数:
    
    val - test this value
    
    返回:
    
    true if val is missing data