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我試圖在地震顛簸dataset上運行kNN分類器,但是當我嘗試編碼shift屬性的標籤時,我得到了錯誤的值錯誤。以下是代碼:Scikit學習不良輸入形狀()爲特定的列
col_names = ['seismic', 'seismoacoustic', 'shift',
'genergy', 'gpuls', 'gdenergy', 'gdpuls',
'ghazard', 'nbumps', 'nbumps2', 'nbumps3',
'nbumps4', 'nbumps5', 'nbumps6', 'nbumps7',
'nbumps89', 'energy', 'maxenergy', 'class']
# Import
sbumps_ds = pd.read_csv('SeismicBumpsDataset.csv', names = col_names)
from sklearn.preprocessing import LabelEncoder
labelenc = LabelEncoder()
# Encode class names to numbers
#sbumps_ds['seismic'] = labelenc.fit_transform(sbumps_ds.seismic)
#sbumps_ds['seismoacoustic'] = labelenc.fit_transform(sbumps_ds.seismoacoustic)
sbumps_ds['shift'] = labelenc.fit_transform(sbumps_ds.shift)
#sbumps_ds['ghazard'] = labelenc.fit_transform(sbumps_ds.ghazard)
#sbumps_ds['shift'] = sbumps_ds.shift.map({'W' : 0, 'N' : 1})
#sbumps_ds['seismic'] = sbumps_ds.seismic.map({'a':0, 'b':1, 'c':2, 'd': 3})
所有屬性的形狀都是相同的。 以下是錯誤:
raise ValueError("bad input shape {0}".format(shape))
ValueError: bad input shape()
此外,當我嘗試映射屬性值,我得到這個錯誤:
sbumps_ds['shift'] = sbumps_ds.shift.map({'W' : 0, 'N' : 1})
AttributeError: 'function' object has no attribute 'map'
將引發錯誤只該屬性。如果我更改班次的名稱,分類器的作品。
DataFrames有一個[shift](http://pandas.pydata.org/pandas-docs/version/0.17.0/generated/pandas.DataFrame.shift.html)方法 – JaminSore
我的谷歌技能吸我猜.. 。 謝謝 :) – fxhh