skbio.metadata.SampleMetadata.filter_columns#

SampleMetadata.filter_columns(*, column_type=None, drop_all_unique=False, drop_zero_variance=False, drop_all_missing=False)[source]#

Filter metadata by columns.

Parameters:

column_typestr, optional: If supplied, will retain only columns of this type. The currently supported column types are ‘numeric’ and ‘categorical’.
drop_all_uniquebool, optional: If True, columns that contain a unique value for every ID will be dropped. Missing data (np.nan) are ignored when determining unique values. If a column consists solely of missing data, it will be dropped.
drop_zero_variancebool, optional: If True, columns that contain the same value for every ID will be dropped. Missing data (np.nan) are ignored when determining variance. If a column consists solely of missing data, it will be dropped.
drop_all_missingbool, optional: If True, columns that have a missing value (np.nan) for every ID will be dropped.

Returns: