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December 1, 2017 15:41
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from __future__ import division # only for Python 2 | |
from sklearn import datasets | |
from sklearn import svm | |
from sklearn import tree | |
from sklearn.ensemble import RandomForestClassifier | |
from sklearn.model_selection import train_test_split as tts | |
from sklearn.metrics import accuracy_score | |
wine = datasets.load_wine() | |
features = wine.data | |
labels = wine.target | |
# split the data into training and testing | |
train_feats, test_feats, train_labels, test_labels = tts(features, labels, test_size=0.2) | |
# SVM with RBF kernel. Default setting of SVM. | |
#clf = svm.SVC() | |
# SVM with linear kernel | |
#clf = svm.SVC(kernel='linear') | |
# Decision Tree Classifier | |
#clf = tree.DecisionTreeClassifier() | |
# Random Forest Classifier | |
clf = RandomForestClassifier() | |
# print the details of the Classifier used | |
print "Using", clf | |
# training | |
clf.fit(train_feats, train_labels) | |
# predictions | |
predictions = clf.predict(test_feats) | |
print "\nPredictions:", predictions | |
score = 0 | |
for i in range(len(predictions)): | |
if predictions[i] == test_labels[i]: | |
score += 1 | |
print "Accuracy:", (score / len(predictions)) * 100, "%" | |
# or, just do this for accuracy | |
# print accuracy_score(test_labels, predictions) |
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