ó µß{Qc@s(dgZddlZddd„ZdS(textendiÿÿÿÿNt reflectiontpowerof2cCs |dkrDddttj|jdƒƒ}||jd}n*|dkr`|jd}ntd|ƒ|dkr tj||ddd…| ƒ}nf|d krÅtj||| ƒ}nA|d krøtj|tj|d |jƒƒ}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 availableRNiÿÿÿÿtperiodictzerostdtypesmethod %s is not available(tinttnptlog2tshapet ValueErrortappendRR(txtmethodtlengthtlttlptxret((s]/srv/fyzport/fyzika/golem/velin/includes/analysis/Magnetics/0411Spectrograms_TO.ON/_extend.pyRs $  &  '(t__all__tnumpyRR(((s]/srv/fyzport/fyzika/golem/velin/includes/analysis/Magnetics/0411Spectrograms_TO.ON/_extend.pyts