maxframe.liteframe.notnull

maxframe.liteframe.notnull(lf)

Detect non-missing values.

Returns a boolean LiteFrame of the same shape where each cell is True where the corresponding value is not null (NA) and False where it is null.

Return type:

LiteFrame

See also

isna

Detect missing values.

dropna

Drop rows with missing values.

Examples

>>> import maxframe.liteframe as mlf
>>> lf = mlf.LiteFrame({'a': [1.0, None, 3.0]})
>>> result = lf.notna()
>>> result.execute()
       a
0   True
1  False
2   True