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knn accuracy in r

Successful Salmon answered on January 22, 2022 Popularity 8/10 Helpfulness 2/10

answer knn accuracy in r

related different accuracy score for knn

knn accuracy in r

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k_7 <- class::knn(training_data, testing_data, training_labels, k = 7)
mean(data_actual == k_7)

Popularity 8/10 Helpfulness 2/10 Language r

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Tags: knn r

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Contributed on Jan 22 2022

Successful Salmon

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different accuracy score for knn

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# Setup arrays to store train and test accuracies
neighbors = np.arange(1, 9)
train_accuracy = np.empty(len(neighbors))
test_accuracy = np.empty(len(neighbors))

# Loop over different values of k
for i, k in enumerate(neighbors):
    # Setup a k-NN Classifier with k neighbors: knn
    knn = KNeighborsClassifier(n_neighbors=k)

…plt.title('k-NN: Varying Number of Neighbors')
plt.plot(neighbors, test_accuracy, label = 'Testing Accuracy')
plt.plot(neighbors, train_accuracy, label = 'Training Accuracy')
plt.legend()
plt.xlabel('Number of Neighbors')
plt.ylabel('Accuracy')
plt.show()

Popularity 8/10 Helpfulness 2/10 Language python

Source: campus.datacamp.com

Tags: python knn k

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Contributed on Jun 06 2022

josh.ipynb

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knn accuracy in r

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