我有这些数据:
print training_data
print labels
# prints
[[1, 0, 1, 1], [1, 1, 1, 1], [1, 0, 1, 1], [1, 1, 1, 0], [1, 1, 0, 1], [1, 1, 1, 1], [1, 1, 1, 1], [1, 1, 1, 1], [1, 1, 0,0], [1, 1, 1, 1], [1, 0, 1, 1]]
['a', 'b', 'a', 'b', 'a', 'b', 'b', 'a', 'a', 'a', 'b']
我试图将其提供给来自sklearn Python库的RandomForestClassifier。
classifier = RandomForestClassifier(n_estimators=10)
classifier.fit(training_data, labels)
但是收到了这个错误:
Traceback (most recent call last):
File "learn.py", line 52, in <module>
main()
File "learn.py", line 48, in main
classifier = train_classifier()
File "learn.py", line 33, in train_classifier
classifier.fit(training_data, labels)
File "/Library/Python/2.7/site-packages/scikit_learn-0.14_git-py2.7-macosx-10.8-intel.egg/sklearn/ensemble/forest.py", line 348, in fit
y = np.ascontiguousarray(y, dtype=DOUBLE)
File "/Library/Python/2.7/site-packages/numpy-1.8.0.dev_bbcfcf6_20130307-py2.7-macosx-10.8-intel.egg/numpy/core/numeric.py", line 419, in ascontiguousarray
return array(a, dtype, copy=False, order='C', ndmin=1)
ValueError: could not convert string to float: a
我的猜测是我没有正确地为适配格式化数据。但我不明白为什么从文档中得到的答案看起来相当基础和简单。有人知道答案吗?