本文整理汇总了Python中music.Music.write_arff方法的典型用法代码示例。如果您正苦于以下问题：Python Music.write_arff方法的具体用法？Python Music.write_arff怎么用？Python Music.write_arff使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类music.Music的用法示例。
在下文中一共展示了Music.write_arff方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from music import Music [as 别名]
# 或者: from music.Music import write_arff [as 别名]
class Generator:
def __init__(self):
self.music = Music()
def write_arffs(self):
for next_file in os.listdir("midi"):
if os.path.isfile("midi/" + next_file):
print "adding midi/" + next_file
self.music.load_song("midi/" + next_file)
print "generating arff files"
self.music.write_arff("test")
def train(self):
print "loading arff files"
instrument_data, note_data, velocity_data, duration_data, time_delta_data = self.music.read_arff(
"test")
self.transform_instrument = preprocessing.OneHotEncoder(categorical_features=[0,1,2,5,6,7,10,11,12,15,16,17,20,21,22])
self.transform_instrument.fit(instrument_data[:, :-1])
self.transform_note = preprocessing.OneHotEncoder(categorical_features=[0,1,2,5,6,7,10,11,12,15,16,17,20,21,22])
self.transform_note.fit(note_data[:, :-1])
self.transform_duration = preprocessing.OneHotEncoder(categorical_features=[0,1,2,5,6,7,10,11,12,15,16,17,20,21,22])
self.transform_duration.fit(duration_data[:, :-1])
self.transform_time_delta = preprocessing.OneHotEncoder(categorical_features=[0,1,2,5,6,7,10,11,12,15,16,17,20,21,22])
self.transform_time_delta.fit(time_delta_data[:, :-1])
print "training instruments"
self.instrument_clf = RandomForestClassifier(n_estimators=10)
self.instrument_clf = self.instrument_clf.fit(
self.transform_instrument.transform(instrument_data[:, :-1]), instrument_data[:, -1:])
print "training notes"
self.note_clf = RandomForestRegressor(n_estimators=10)
print note_data[:, :-1]
self.note_clf = self.note_clf.fit(self.transform_note.transform(note_data[:, :-1]), note_data[:, -1:])
print "training velocity"
self.velocity_clf = RandomForestClassifier(n_estimators=10)
self.velocity_clf = self.velocity_clf.fit(
velocity_data[:, :-1], velocity_data[:, -1:])
print "training duration"
self.duration_clf = RandomForestClassifier(n_estimators=10)
self.duration_clf = self.duration_clf.fit(
self.transform_duration.transform(duration_data[:, :-1]), duration_data[:, -1:])
print "training time_delta"
self.time_delta_clf = RandomForestClassifier(n_estimators=10)
self.time_delta_clf = self.time_delta_clf.fit(
self.transform_time_delta.transform(time_delta_data[:, :-1]), time_delta_data[:, -1:])
def generate_song(self, filename):
self.song = Song()
self.song.add_note(self.get_seed_note())
self.song.add_note(self.get_seed_note())
print "generating new song"
for _ in range(5000):
notes = self.song.get_last_notes()
notes = np.array(notes).reshape(1, -1)
instrument = self.instrument_clf.predict(self.transform_instrument.transform(notes))[0]
note = self.note_clf.predict(self.transform_note.transform(notes))[0]
velocity = self.velocity_clf.predict(notes)[0]
note_duration = self.duration_clf.predict(self.transform_duration.transform(notes))[0] * 2
time_delta = self.time_delta_clf.predict(self.transform_time_delta.transform(notes))[0] * 0.75
self.song.add_note(Note(int(instrument), int(note), int(
velocity), int(time_delta), duration=int(note_duration)))
print "writing song to " + filename
self.song.write_file(filename)
def get_seed_note(self):
return Note(0, random.randrange(0, 126), 100, 0, duration=random.randrange(1, 10) * 10)