U Kv f@sdZddlmZmZmZmZddlZddlZddlZ ddl m Z ddddddddd Z d d d d d d d d d d d d g Z eed de Zeeeeed deZeeeddddddddddddg edZdZdZddZd(d d!Zd)d"d#Zd$d%Zd*d&d'ZdS)+z Tools for working with dates )asstrlmaplrangelzipN) to_datetime))) r  r)1234IIIIIIIVrr  rrrrVZVIZVIIZVIIIZIXXZXIZXIIz ^\d?\d?\d?\d$z ^ # beginning of string \d?\d?\d?\d # match any number 1-9999, includes leading zeros (:?q) # use q or a : as a separator ([1-4]|(I{1,3}V?)) # match 1-4 or I-IV roman numerals $ # end of string a= ^ # beginning of string \d?\d?\d?\d # match any number 1-9999, includes leading zeros (:?m) # use m or a : as a separator (([1-9][0-2]?)|(I?XI{0,2}|I?VI{0,3}|I{1,3})) # match 1-12 or # I-XII roman numerals $ # end of string cCs,t|}|ddko*|ddkp*|ddkS)Nrdi)int)yearrB/tmp/pip-unpacked-wheel-2v6byqio/statsmodels/tsa/base/datetools.py_is_leap;sr!c KstjtjB}tt||rN|ddd\}}t| \}}t |}ntt ||r|ddd\}} t | \}}t |}t |r|dkr|d7}n,tt||rd\}}t |}n t|f|St|||S)a$ Uses dateutil.parser.parse, but also handles monthly dates of the form 1999m4, 1999:m4, 1999:mIV, 1999mIV and the same for quarterly data with q instead of m. It is not case sensitive. The default for annual data is the end of the year, which also differs from dateutil. :qmrr )re IGNORECASEVERBOSEsearch _q_patternreplacelowersplit_quarter_to_dayupperr _m_pattern _month_to_dayr! _y_patternrdatetime) ZtimestrZ parserinfokwargsflagsyr$monthdayrr%rrr date_parser@s      r:c stjtjB}|}tt||r,d}dnPtt||rDd}dn8tt||rpd}|d7}|rj|d7}dn td|t t | d d  \}}|d k r|}t t | d d  \}}n(|std |||}|||d}d dt t|d||D} t|g|d|| } | t|g|} dkrt t d|d||dd} t jt ||dd| f} t j| t d|ddf} fddt| | D} n| } | S)a Returns a list of abbreviated date strings. Parameters ---------- start : str The first abbreviated date, for instance, '1965q1' or '1965m1' end : str, optional The last abbreviated date if length is None. length : int, optional The length of the returned array of end is None. Returns ------- date_range : list List of strings r r%rr$rZa1azDate %s not understoodr"r#Nz&length must be provided if end is NonecSsg|] }t|qSr)str).0yrrrr sz"date_range_str..Za2cs$g|]\}}d|t|gqS)r#)joinr)r=ijr.rr r?s)r'r(r)r-r*r1r+r3 ValueErrorrrr,r.nprepeatrr<ZtileZarangeZastypeZr_zip) startendlengthr6Z annual_freqZyr1Zoffset1Zyr2Zoffset2ZyearsoffsetZdate_arr_rangerrCr date_range_str[sF     &   rLcCs tt|S)ak Turns a sequence of date strings and returns a list of datetime. Parameters ---------- dates : array_like A sequence of abbreviated dates as string. For instance, '1996m1' or '1996Q1'. The datetime dates are at the end of the period. Returns ------- date_list : ndarray A list of datetime types. )rr:)datesrrr dates_from_strsrNcCst|||}t|S)aX Turns a sequence of date strings and returns a list of datetime. Parameters ---------- start : str The first abbreviated date, for instance, '1965q1' or '1965m1' end : str, optional The last abbreviated date if length is None. length : int, optional The length of the returned array of end is None. Examples -------- >>> import statsmodels.api as sm >>> import pandas as pd >>> nobs = 50 >>> dates = pd.date_range('1960m1', length=nobs) Returns ------- date_list : ndarray A list of datetime types. )rLrN)rHrIrJrMrrr dates_from_ranges rO)N)NN)NN)__doc__Zstatsmodels.compat.pythonrrrrr4r'ZnumpyrEZpandasrr/Z_mdaysZ_months_with_daysdictrGmapr<r2updater3r+r1r!r:rLrNrOrrrr sF     <