o
    i                     @   sh   d dl Z d dlZd dlZd dlmZmZmZmZ ejdd Z	ejdd Z
dd Zd	d
 Zdd ZdS )    N)SGDSparseLinearSparseLinear_v2to_categoricalc                  C   sZ   t jddgdd} t jddd}t jddd}||| f}t jdd	gdd}|t|d
dfS )N      int32dtype	   uint64float32r         )	n_classes)numpyasarrayarangeonesr   )lengthskeysvaluesXy r   Y/home/ubuntu/.local/lib/python3.10/site-packages/thinc/tests/layers/test_sparse_linear.py	instances	   s   
r   c                   C   s   t dS )NgMbP?)r   r   r   r   r   sgd   s   r   c           
      C   sz   | \}}d}t | }||\}}|| d  }|||  || ||\}}|| d  }	|	|k s;J d S )Nr   r   )r   
initializebegin_updatesumfinish_update)
r   r   r   r   nr_classmodelyhbackproploss1loss2r   r   r   
test_basic   s   
r(   c                  C   s   t d } tjddd}tjddd}tjddd}d|d< d	|d
< | |||f\}}|jdks4J ||}t|dks@J d S )Nr   )r   r   r	   fr   r   r   r      )r   r   )r   r   r   r   zerosr   shapelen)r#   r   r   r   scoresr%   d_featsr   r   r   	test_init%   s   r1   c                  C   s  d} d}t | |d }ttj}tjddd}tddD ]i}|d	d
 d| }tjj	|j
|j|ftjd}tj|fdd}|d |d< |d |d< dtd| |  }||||f\}	}
|
t|	 |d	| d}tj|dd|jd  }tjj||ddd qd S )N
   i   )nOlengthr*   r   r	   r+      Wg        r   )sizer
   r)   r   )axisg-C6?)rtolatol)r   r   r   iinfor   r,   rangeset_gradrandomrandintminmaxr   mathexpr   	ones_likeget_gradreshapecount_nonzeror-   testingassert_allclose)n_classr4   r#   ii64r   	p_nonzeronr   r   Yr%   dWnonzero_empiricalr   r   r   test_distribution2   s*   rS   )rD   r   pytest	thinc.apir   r   r   r   fixturer   r   r(   r1   rS   r   r   r   r   <module>   s    
	
