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    ½mœd)  ã                   @   s´   d dl Z d dlZd dlZd dlmZ d dlmZ d dlm	Z	m
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 d dlmZ e ¡ jZedd…d f Zej\ZZdd„ Zdd	„ Zd
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ƒ t ddddddƒ t ddddddƒ t ddddddƒ d S )Néd   é   r   g{®Gáz„?çš™™™™™¹?éP   é   éF   é(   é2   iè  iÂ  i  i¤  i   if  iô  é   gü©ñÒMbP?i^  )Úlaunch_mcd_on_dataset© r   r   úh/home/sam/Atlas/atlas_env/lib/python3.8/site-packages/sklearn/covariance/tests/test_robust_covariance.pyÚtest_mcd   s    r   c               	   C   s4   t  d¡} d}tjt|d�� t| ƒ W 5 Q R X d S ©Nr   z'Expected 2D array, got 1D array instead©Úmatch)ÚnpÚarangeÚpytestÚraisesÚ
ValueErrorr   )ÚXÚmsgr   r   r   Útest_fast_mcd_on_invalid_input+   s    
r   c               	   C   s<   t  d¡} tƒ }d}tjt|d�� | | ¡ W 5 Q R X d S r   )r   r   r   r   r   r   Úfit)r   Úmcdr   r   r   r   Útest_mcd_class_on_invalid_input2   s
    
r!   c                 C   s  t j d¡}| | |¡}| | ¡d |… }d|jd||fd�d  }	||  |	7  < t  | ¡ t¡}
d|
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 }t	|d� 
|¡}|j}|j}|j}t  | d¡| d ¡}||k sºt‚t  t|ƒ| d ¡}||k sÜt‚t  |¡|ksît‚t| |¡|jƒ d S )Nr   g      $@é   ©Úsizeç      à?F©Zrandom_state)r   ÚrandomÚRandomStateZrandnZpermutationÚrandintZonesZastypeÚboolr   r   Z	location_Zcovariance_Zsupport_ZmeanÚAssertionErrorr   Úsumr   ZmahalanobisZdist_)Ú	n_samplesÚ
n_featuresZ
n_outliersZtol_locZtol_covZtol_supportÚrand_genÚdataZoutliers_indexZoutliers_offsetZinliers_maskZ	pure_dataZmcd_fitÚTÚSÚHZerror_locationZ	error_covr   r   r   r   :   s$    r   c                  C   s,   t j d¡} | jdd�}tƒ }| |¡ d S )Nr   )é   r   r#   )r   r'   r(   Únormalr   r   )Zrndr   r    r   r   r   Útest_mcd_issue1127V   s    r6   c                  C   sf   t j d¡} t  ddd¡ ¡ }t  tt ||¡ƒ¡}t  	|t  
|jd df¡f¡}t| d� |¡ d S )Nr   éûÿÿÿr   é
   r   r&   )r   r'   r(   ZlinspaceÚtolistÚarrayÚlistÚ	itertoolsÚproductZhstackZzerosÚshaper   r   )r/   Zdata_valuesr0   r   r   r   Útest_mcd_issue3367_   s
    r?   c                  C   s�   t  ddddddddddg
¡} |  dd¡} t  ddddddddddg
¡}| dd¡}d}| |fD ]*}tjt|d	�� tƒ  |¡ W 5 Q R X q`d S )
Nr%   r	   g9´Èv¾Ÿî?g�•C‹lÛ?éÿÿÿÿr   ç333333Ó?zYThe covariance matrix of the support data is equal to 0, try to increase support_fractionr   )r   r:   Zreshaper   r   r   r   r   )ZX_1ZX_2r   r   r   r   r   Ú#test_mcd_support_covariance_is_zero   s    ÿrB   c                  C   sø   ddddgddddgddd	dgd
dddgddddgd
dddgddddgddddgddddgddddgddddgddddgddddgddddgddddgddddgd
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rD   )r<   Únumpyr   r   Zsklearn.utils._testingr   Zsklearnr   Zsklearn.covariancer   r   r   Z	load_irisr0   r   ZX_1dr>   r-   r.   r   r   r!   r   r6   r?   rB   rD   r   r   r   r   Ú<module>   s"   
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