watex.utils.funcutils.is_in_if#

watex.utils.funcutils.is_in_if(o, /, items, error='raise', return_diff=False, return_intersect=False)[source]#

Raise error if item is not found in the iterable object ‘o’

Parameters

  • o – unhashable type, iterable object, object for checkin. It assumes to be an iterable from which ‘items’ is premused to be in.

  • items – str or list, Items to assert whether it is in o or not.

  • error – str, default=’raise’ raise or ignore error when none item is found in o.

  • return_diff – bool, returns the difference items which is/are not included in ‘items’ if return_diff is True, will put error to ignore systematically.

:param return_intersect:bool,default=False

returns items as the intersection between o and items.

Raise

ValueError raise ValueError if items not in o.

Returns

list, s : object found in o` or the difference object i.e the object that is not in `items` provided that `error` is set to ``ignore. Note that if None object is found and error is ignore , it will return None, otherwise, a ValueError raises.

Example
>>> from watex.datasets import load_hlogs
>>> from watex.utils.funcutils import is_in_if
>>> X0, _= load_hlogs (as_frame =True )
>>> is_in_if  (X0 , items= ['depth_top', 'top'])
... ValueError: Item 'top' is missing in the object
>>> is_in_if (X0, ['depth_top', 'top'] , error ='ignore')
... ['depth_top']
>>> is_in_if (X0, ['depth_top', 'top'] , error ='ignore',
               return_diff= True)
... ['sp',
 'well_diameter',
 'layer_thickness',
 'natural_gamma',
 'short_distance_gamma',
 'strata_name',
 'gamma_gamma',
 'depth_bottom',
 'rock_name',
 'resistivity',
 'hole_id']