### Navigation

- index
- modules |
- next |
- previous |
- pandas 0.14.1 documentation »
- API Reference »

# pandas.notnull

`pandas.``notnull`(obj)

  Replacement for numpy.isfinite / -numpy.isnan which is suitable for use on object arrays.

  Parameters : | arr : ndarray or object value Object to check for not-null-ness
  Returns : | isnulled : array-like of bool or bool Array or bool indicating whether an object is not null or if an array is given which of the element is not null.

  See also

  `pandas.isnull`
    boolean inverse of pandas.notnull

### Navigation

- index
- modules |
- next |
- previous |
- pandas 0.14.1 documentation »
- API Reference »