a
    p=ic                     @   sf   d Z ddlZddlZddlmZmZmZmZmZm	Z	 ddl
mZmZmZmZmZmZ G dd dZdS )z" Test functions for linalg module
    N)linalgarangefloat64arraydot	transpose)assert_assert_raisesassert_equalassert_array_equalassert_array_almost_equalassert_array_lessc                   @   sT   e Zd Zdd Zdd Zdd Zdd Zd	d
 Zdd Zdd Z	dd Z
dd ZdS )TestRegressionc                 C   sR   t g d}tdtd}d|_|d }t|\}}|  |  t|| d S )N)yӝ'Y@        yF.<2/3        yʹLTW9>/@yʹLTW9>/y=J&        ytV)忷B$@ytV)忷B$yZynFr62@        y(3%@        y:@        yCr~        yYqs`<        yt&Aۼ           dtype)   r      )r   r   r   shaper   Zeigsortr   )selfZrvaavave r   s/home/droni/.local/share/virtualenvs/DPS-5Je3_V2c/lib/python3.9/site-packages/numpy/linalg/tests/test_regression.pytest_eig_build   s    zTestRegression.test_eig_buildc                 C   s>   g d}t g dg dg dg}t|\}}t|| d S )N)g"&Q@ggdV@g7Z@)g'UlS@4h@%pJ/@)r   g+>V@研qi0)r   r   gJ%~X@)r   r   Zeighr   )r   ZrvalsZcovvalsZvecsr   r   r   test_eigh_build&   s    zTestRegression.test_eigh_buildc                 C   sl   t ddgddgddgddgg}|j\}}t|\}}}tt|d d |d f |}t|td d S )Ng              ?       @      @)   r%   )	r   r   r   svdr   r   r   npZzeros)r   r   mnusZvhbr   r   r   test_svd_build1   s
     
zTestRegression.test_svd_buildc                 C   s   t ttjtg dd d S )N)r"   r#   r$   fro)r	   
ValueErrorr   normr   )r   r   r   r   test_norm_vector_badarg;   s    z&TestRegression.test_norm_vector_badargc                 C   sF   t ddgddggdd}t |dd}t|}t|}t|| d S )NgC$ 3@g&ug.ܷ#@z>f8r   z<f8)r   r   Zcholeskyr   )r   r   r,   apbpr   r   r   test_lapack_endian@   s    

z!TestRegression.test_lapack_endianc                 C   s   t dd}t j| d S )Ni  B   )r'   eyer   r&   )r   xr   r   r   test_large_svd_32bitJ   s    z#TestRegression.test_large_svd_32bitc                 C   s~   dD ]t}t tfD ]f}tj||d}tj|dd}tt|dk}t|d ttj	|d t
dtjj|dd qqd S )	N))      )r:   r:   )r:   r9   r   F)Z
compute_uvg      ?   r%   ord)floatcomplexr'   Zonesr   r&   Zcount_nonzeroabsoluter
   Zmatrix_rankr   r0   )r   r   tr   wcr   r   r   test_svd_no_uvO   s    
zTestRegression.test_svd_no_uvc                 C   s  t jt ddgddgtd}t|}t|ddg t|jt dk tj|dd}t|ddg t|jt dk tj|dd}t|ddg t|jt dk tt	tj|dd tt	tj|dd tt	tj|t j
d tt	tj|t j
 d t 2 td	t tttftj|dd W d    n1 s:0    Y  tt	tj|d
d tt	tj|dd t jt ddgddgg dgtd}t|}t|ddg t|jt dk tj|dd}t|ddg t|jt dk tttj|dd tt	tj|t j
d tt	tj|t j
 d tt	tj|dd tt	tj|dd tt	tj|d
d tttj|dd tttj|dd tt	tj|dd d S )Nr   r;   r   r   r<   r%   r.   Znucerror)r   r   r   r9   )r'   r   objectr   r0   r   r   r   r	   r/   infwarningscatch_warningssimplefilterDeprecationWarningAttributeError	TypeError)r   Z
testvectorr0   Z
testmatrixr   r   r   test_norm_object_arrayZ   sR    

&
z%TestRegression.test_norm_object_arrayc           
      C   sx   d}d}t j||dt j||  }t j||dt j||  }||}tj||d d\}}}}	t|| d S )N   F   y              ?)Zrcond)r'   randomZrandnr   r   Zlstsqr   )
r   sizeZn_rhsGr*   r,   Zu_lstsqresZranksvr   r   r   test_lstsq_complex_larger_rhs   s      
z,TestRegression.test_lstsq_complex_larger_rhsN)__name__
__module____qualname__r   r!   r-   r1   r4   r8   rD   rP   rX   r   r   r   r   r      s   

0r   )__doc__rJ   numpyr'   r   r   r   r   r   r   Znumpy.testingr   r	   r
   r   r   r   r   r   r   r   r   <module>   s
     