ó “µéQc@s(dgZddlZddd„ZdS(textendiÿÿÿÿNt reflectiontpowerof2cCs«|dkrDddttj|jdƒƒ}||jd}n*|dkr`|jd}ntd|ƒ|dkr¾tj||ddd…dd…fd|…dd…fƒ}né|d kr*d GHtj||d|…dd…fƒ}tjtj||d|…dd…fƒƒGHn}|d kr™tjtj|d|jd fd |jƒ|tj||d|jd fd |jƒf}ntd|ƒ|S(sn Extend the 1D numpy array x beyond its original length. :Parameters: x : 1d ndarray data method : string ('reflection', 'periodic', 'zeros') indicates which extension method to use length : string ('powerof2', 'double') indicates how to determinate the length of the extended data :Returns: xe : 1d ndarray extended version of x Example: >>> import numpy as np >>> import mlpy >>> a = np.array([1,2,3,4,5]) >>> mlpy.extend(a, method='periodic', length='powerof2') array([1, 2, 3, 4, 5, 1, 2, 3]) Riitdoubleslength %s is not availableRNiÿÿÿÿtperiodict periodicstzerositdtypesmethod %s is not available( tinttnptlog2tshapet ValueErrortappendtr_RR(txtmethodtlengthtlttlptxret((sY/srv/fyzport/fyzika/golem/velin/includes/analysis/Magnetics/0712MultiCWT_TO.ON/_extend.pyRs  $  D (3 c(t__all__tnumpyR R(((sY/srv/fyzport/fyzika/golem/velin/includes/analysis/Magnetics/0712MultiCWT_TO.ON/_extend.pyts