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def filtered_stratified_split(ids, splitter, Y, **kwargs):
    '''Cross-validation split filtration. Ensures that points of the same meta-id end up on the same side of the split

    input:

        ids:         n-by-1 mapping of data points to meta-id
        splitter:    handle to the cross-validation class (eg, StratifiedShuffleSplit)
        Y:           n-by-1 vector of class labels
        **kwargs:    arguments to the cross-validation class

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{
 "metadata": {
  "name": "LibROSA demo"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {

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import librosa
import numpy as np
import scipy
y, sr = librosa.load('/home/bmcfee/data/SMC_Mirex/SMC_MIREX_Audio/SMC_002.wav')
D = librosa.stft(y, n_fft=512)

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import os
import git

def get_git_revision(filename, default='unversioned'):
    '''Walk up a path name until we find a git dir, then grab its current revision.
    
    If the file is not under any git repository, returns ''.
    '''
    
    old_filename = None

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{
 "metadata": {
  "name": ""
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {

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[MASTER]

# Specify a configuration file.
#rcfile=

# Python code to execute, usually for sys.path manipulation such as
# pygtk.require().
#init-hook=

# Profiled execution.

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{
 "metadata": {
  "name": ""
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {