U
    *if[%                     @   s   d Z ddlZddlZddlZddlm  mZ ddl	Z
ddl	mZmZ ddlmZ ddlmZmZmZ G dd dZG dd dZdS )	zP
Tests for statistical reductions of 2nd moment or higher: var, skew, kurt, ...
    N)	DataFrameSeries)DatetimeArrayPeriodArrayTimedeltaArrayc                	   @   s~   e Zd Zejdeeje	gdd Z
ejdeejegejdddddd	gd
d Zejdeejegdd ZdS )TestDatetimeLikeStatReductionsboxc                 C   s   |}t jdd|d}|dddddd	d
ddddg}|j}||}| t jd|dks\t|jddt jd|dksztt j|d< ||}| t jd|dkst|jddt jkstd S )N
2001-01-01   )periodstz         
   	            r         z
2001-01-06)r   FZskipnaz2001-01-06 07:12:00)pd
date_rangetake_datamean	TimestampAssertionErrorNaT)selfZtz_naive_fixturer   r   dtiZdtarrobj r$   _/home/mars/bis/venv/lib/python3.8/site-packages/pandas/tests/reductions/test_stat_reductions.pytest_dt64_mean   s     
z-TestDatetimeLikeStatReductions.test_dt64_meanfreqSHDWBc                 C   s   t jddd}|dddddd	d
ddddg}|j|}||}tjtdd |  W 5 Q R X tjtdd |jdd W 5 Q R X t j	|d< tjtdd |  W 5 Q R X tjtdd |jdd W 5 Q R X d S )Nr	   r
   r   r   r   r   r   r   r   r   r   r   r   r   Z	ambiguousmatchTr   r   )
r   r   r   r   Z	to_periodpytestraises	TypeErrorr   r    )r!   r   r'   r"   Zparrr#   r$   r$   r%   test_period_mean-   s     
z/TestDatetimeLikeStatReductions.test_period_meanc                 C   s   t jddddddddddd	gd
d}|j}||}| }t| }||ksTtt j|d< |jddt jkstt|jdd}||dd   kst|d|d d dkstd S )Nr   r   r   ir   r   r   r   r*   )unitFr   Tusg      &@r   )	r   ZTimedeltaIndexr   r   nparrayr   r    round)r!   r   ZtdiZtdarrr#   resultexpectedZresult2r$   r$   r%   test_td64_meanD   s    $
z-TestDatetimeLikeStatReductions.test_td64_meanN)__name__
__module____qualname__r0   markZparametrizer   r   Indexr   r&   r   r3   r   r<   r$   r$   r$   r%   r      s   
r   c                   @   sr   e Zd ZdddZdd Zdd Zdd	 Zd
d Zdd Zdd Z	dd Z
dd Zejdd Zejdd ZdS )TestSeriesStatReductionsFc              
   C   s   t dd tt|}tj|dd< |dkrptt jddd}d	| d
}tjt	|d || W 5 Q R X t 
||stt ||ddst| }	t||	||	j t||||	j |tj }
|rt||
sttdddd dg}|| dg}|tdd t|dd}tt||t||j |r|tt jddd}||}||}||ks|t|dkrtjt	d d |ttd W 5 Q R X d}tjt|d ||dd W 5 Q R X dt|jkrtjt|d ||dd W 5 Q R X W 5 Q R X d S )NZuse_bottleneckFr      )maxminr   medianstdz1/1/2001r   r-   zdoes not support reduction ''r.   r   r   r   r   r   l        l      Zint64Zdtypez1/1/2000)sumrE   rD   abcz&No axis named 1 for object type Series)Zaxisnumeric_onlyT)rL   )r   Zoption_contextgetattrr   r7   NaNr   r0   r1   r2   Znotnar   isnaZdropnatmassert_almost_equalvaluesnanisnanextendrangefloatZbdate_rangelist
ValueErrorinspectgetfullargspecargsNotImplementedError)r!   nameZ	alternateZstring_series_check_objectscheck_allnafZdsmsgZnonaZallnasitemsresexpr$   r$   r%   _check_stat_op^   sH    


z'TestSeriesStatReductions._check_stat_opc                 C   s&   t  d}| jdtj|dd d S )NseriesrJ   F)r`   )rP   makeStringSeriesrenamerg   r7   rJ   r!   string_seriesr$   r$   r%   test_sum   s    z!TestSeriesStatReductions.test_sumc                 C   s"   t  d}| dtj| d S )Nrh   r   )rP   ri   rj   rg   r7   r   rk   r$   r$   r%   	test_mean   s    z"TestSeriesStatReductions.test_meanc                 C   sR   t  d}| dtj| ttjdtdt	dd}t 
t||  d S )Nrh   rF   r   rI   index)rP   ri   rj   rg   r7   rF   r   onesintrV   rQ   )r!   rl   Zint_tsr$   r$   r%   test_median   s    z$TestSeriesStatReductions.test_medianc                 C   s"   t  d}| dtj| d S )Nrh   prod)rP   ri   rj   rg   r7   rt   rk   r$   r$   r%   	test_prod   s    z"TestSeriesStatReductions.test_prodc                 C   s&   t  d}| jdtj|dd d S )Nrh   rE   Tr_   )rP   ri   rj   rg   r7   rE   rk   r$   r$   r%   test_min   s    z!TestSeriesStatReductions.test_minc                 C   s&   t  d}| jdtj|dd d S )Nrh   rD   Trv   )rP   ri   rj   rg   r7   rD   rk   r$   r$   r%   test_max   s    z!TestSeriesStatReductions.test_maxc                 C   s   t  d}t  d}dd }| d|| dd }| d|| |jdd	}tj|jdd	}t || |j	dd	}tj	|jdd	}t || |j
d
g }|j	dd	}t|st|jdd	}t|std S )Nrh   tsc                 S   s   t j| ddS Nr   Zddof)r7   rG   xr$   r$   r%   <lambda>       z7TestSeriesStatReductions.test_var_std.<locals>.<lambda>rG   c                 S   s   t j| ddS rz   )r7   varr|   r$   r$   r%   r~      r   r   r   r{   r   r   )rP   ri   rj   makeTimeSeriesrg   rG   r7   rR   rQ   r   ilocr   rO   r   r!   rl   Zdatetime_seriesaltr:   r;   rc   r$   r$   r%   test_var_std   s"    z%TestSeriesStatReductions.test_var_stdc                 C   s   t  d}t  d}dd }| d|| |jdd}tj|jddt	t
|j }t || |jdg }|jd	d}t|std S )
Nrh   ry   c                 S   s   t j| ddt t|  S rz   )r7   rG   sqrtlenr|   r$   r$   r%   r~      r   z3TestSeriesStatReductions.test_sem.<locals>.<lambda>semr   r{   r   r   )rP   ri   rj   r   rg   r   r7   rG   rR   r   r   rQ   r   r   rO   r   r   r$   r$   r%   test_sem   s    z!TestSeriesStatReductions.test_semc                    s   ddl m  t d} fdd}| d|| d}td|d D ]z}tt	|}t
t	||f}||k rt| stt|  stqFd| kst| dk sFtqFd S )	Nr   skewrh   c                    s    | ddS NF)Zbiasr$   r|   r   r$   r%   r~      r   z4TestSeriesStatReductions.test_skew.<locals>.<lambda>r   r   r   )scipy.statsr   rP   ri   rj   rg   rV   r   r7   rq   r   rT   r   all)r!   rl   r   min_Nirc   dfr$   r   r%   	test_skew   s    z"TestSeriesStatReductions.test_skewc              
      s^  ddl m  t d} fdd}| d|| tjdgdd	d
gddggddddddgddddddgddddddggd}tt	j
d|d}tt" t| |jddd  W 5 Q R X d}td|d D ]}tt	|}tt	||f}||k r2t	| stt	|  sXtqd| ksDt| dk stqd S )Nr   kurtosisrh   c                    s    | ddS r   r$   r|   r   r$   r%   r~     r   z4TestSeriesStatReductions.test_kurt.<locals>.<lambda>kurtbaronetwothreer   r   )Zlevelscodesr   ro   )levelr   )r   r   rP   ri   rj   rg   r   Z
MultiIndexr   r7   randomZrandnZassert_produces_warningFutureWarningrQ   r   rV   rq   r   rT   r   r   )r!   rl   r   rp   rc   r   r   r   r$   r   r%   	test_kurt   s(    ,&
z"TestSeriesStatReductions.test_kurtN)FF)r=   r>   r?   rg   rm   rn   rs   ru   rw   rx   r   r   tdZskip_if_no_scipyr   r   r$   r$   r$   r%   rB   Y   s      
?
rB   )__doc__rZ   numpyr7   r0   Zpandas.util._test_decoratorsutilZ_test_decoratorsr   Zpandasr   r   r   Zpandas._testingZ_testingrP   Zpandas.core.arraysr   r   r   r   rB   r$   r$   r$   r%   <module>   s   A