U
    >vf#                     @   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meanZ	TimestampAssertionErrorNaT)selfZtz_naive_fixturer   r   dtiZdtarrobj r#   P/tmp/pip-unpacked-wheel-vdrwu74i/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$   test_period_mean-   s     
z/TestDatetimeLikeStatReductions.test_period_meanc                 C   s   t jddddddddddd	gd
d}|j}||dd}| }t| }||ksXtt j|d< |jddt jksxt|jdd}||dd   kst|d|d d dkstd S )Nr   r   r   ir   r   r   r   r)   )unitF)copyr   Tusg      &@r   )	r   ZTimedeltaIndexr   r   nparrayr   r   round)r    r   ZtdiZtdarrr"   resultexpectedZresult2r#   r#   r$   test_td64_meanD   s    $
z-TestDatetimeLikeStatReductions.test_td64_meanN)__name__
__module____qualname__r/   markZparametrizer   r   ZIndexr   r%   r   r2   r   r<   r#   r#   r#   r$   r      s   
r   c                   @   sz   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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||dd 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)sumrD   rC   abcz&No axis named 1 for object type Series)Zaxisnumeric_onlyT)rK   )r   Zoption_contextgetattrr   r7   NaNr   r/   r0   r1   Znotnar   isnaZdropnatmassert_almost_equalvaluesnanisnanextendrangefloatZbdate_rangelist
ValueErrorinspectgetfullargspecargs)r    nameZ	alternateZstring_series_check_objectscheck_allnafZdsmsgZnonaZallnasitemsresexpr#   r#   r$   _check_stat_op^   sF    


z'TestSeriesStatReductions._check_stat_opc                 C   s&   t  d}| jdtj|dd d S )NseriesrI   F)r^   )rO   makeStringSeriesrenamere   r7   rI   r    string_seriesr#   r#   r$   test_sum   s    z!TestSeriesStatReductions.test_sumc                 C   s"   t  d}| dtj| d S )Nrf   r   )rO   rg   rh   re   r7   r   ri   r#   r#   r$   	test_mean   s    z"TestSeriesStatReductions.test_meanc                 C   sR   t  d}| dtj| ttjdtdt	dd}t 
t||  d S )Nrf   rE   r   rH   )index)rO   rg   rh   re   r7   rE   r   onesintrU   rP   )r    rj   Zint_tsr#   r#   r$   test_median   s    z$TestSeriesStatReductions.test_medianc                 C   s"   t  d}| dtj| d S )Nrf   prod)rO   rg   rh   re   r7   rq   ri   r#   r#   r$   	test_prod   s    z"TestSeriesStatReductions.test_prodc                 C   s&   t  d}| jdtj|dd d S )Nrf   rD   Tr]   )rO   rg   rh   re   r7   rD   ri   r#   r#   r$   test_min   s    z!TestSeriesStatReductions.test_minc                 C   s&   t  d}| jdtj|dd d S )Nrf   rC   Trs   )rO   rg   rh   re   r7   rC   ri   r#   r#   r$   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 )Nrf   tsc                 S   s   t j| ddS Nr   Zddof)r7   rF   xr#   r#   r$   <lambda>       z7TestSeriesStatReductions.test_var_std.<locals>.<lambda>rF   c                 S   s   t j| ddS rw   )r7   varry   r#   r#   r$   r{      r|   r}   r   rx   r   r   )rO   rg   rh   makeTimeSeriesre   rF   r7   rQ   rP   r}   ilocr   rN   r   r    rj   Zdatetime_seriesaltr:   r;   ra   r#   r#   r$   test_var_std   s"    z%TestSeriesStatReductions.test_var_stdc                 C   s   t  d}t  d}dd }| d|| |jdd}tj|jddt	t
|j }t || |jdg }|jd	d}t|std S )
Nrf   rv   c                 S   s   t j| ddt t|  S rw   )r7   rF   sqrtlenry   r#   r#   r$   r{      r|   z3TestSeriesStatReductions.test_sem.<locals>.<lambda>semr   rx   r   r   )rO   rg   rh   r~   re   r   r7   rF   rQ   r   r   rP   r   r   rN   r   r   r#   r#   r$   test_sem   s    z!TestSeriesStatReductions.test_semc                    s   ddl m  t d} fdd}| d|| d}td|d D ]z}tt	|}t
t	||f}||k rt| stt|  stqFd| kst| dk sFtqFd S )	Nr   skewrf   c                    s    | ddS NF)Zbiasr#   ry   r   r#   r$   r{      r|   z4TestSeriesStatReductions.test_skew.<locals>.<lambda>r   r   r   )scipy.statsr   rO   rg   rh   re   rU   r   r7   rn   r   rS   r   all)r    rj   r   min_Nira   dfr#   r   r$   	test_skew   s    z"TestSeriesStatReductions.test_skewc                    s8   ddl m  t d} fdd}| d|| d S )Nr   kurtosisrf   c                    s    | ddS r   r#   ry   r   r#   r$   r{      r|   z4TestSeriesStatReductions.test_kurt.<locals>.<lambda>kurt)r   r   rO   rg   rh   re   )r    rj   r   r#   r   r$   	test_kurt   s    z"TestSeriesStatReductions.test_kurtc                 C   s   d}t d|d D ]z}tt|}tt||f}||k rht| sPtt|  stqd| ksxt| dk stqd S )Nr   r   r   )	rU   r   r7   rn   r   rS   r   r   r   )r    r   r   ra   r   r#   r#   r$   test_kurt_corner  s    z)TestSeriesStatReductions.test_kurt_cornerN)FF)r=   r>   r?   re   rk   rl   rp   rr   rt   ru   r   r   tdZskip_if_no_scipyr   r   r   r#   r#   r#   r$   rA   Y   s       
=

rA   )__doc__rY   Znumpyr7   r/   Zpandas.util._test_decoratorsutilZ_test_decoratorsr   Zpandasr   r   r   Zpandas._testingZ_testingrO   Zpandas.core.arraysr   r   r   r   rA   r#   r#   r#   r$   <module>   s   A