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silhouette score added #87

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3f8e90f
silhouette score added
ChathukiKet Dec 10, 2021
b974b17
updated readme saying that the Silhouette score is calculated
ChathukiKet Dec 10, 2021
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2 changes: 1 addition & 1 deletion Volume1/Chapter7/k_means_clustering/README.md
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What it does :

1. This code generates random data in 2D and runs the k-means algorithm on the dataset using the value of k provided by the user.
1. This code generates random data in 2D and runs the k-means algorithm on the dataset using the value of k provided by the user. Then calculates the Silhouette score.

Dependancies :

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129 changes: 84 additions & 45 deletions Volume1/Chapter7/k_means_clustering/k_means_clustering.ipynb
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11 changes: 11 additions & 0 deletions Volume1/Chapter7/k_means_clustering/k_means_clustering.py
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# Import kmeans module
from sklearn.cluster import KMeans

# Import silhouette_score function
from sklearn.metrics import silhouette_score

# ------------------------------------ Generate and plot the 2D dataset -------------------------------------------

# Generate the two dimensional dataset
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# Show the clusters with their centroids
plt.show()

# --------------------------------------- Calculate the Silhoutte Score --------------------------------------------

# Calculate Silhoutte Score
silhoutte_score = silhouette_score(X, kmeans.labels_, metric='euclidean')

# Print the Silhoutte score
print ('Silhouetter Score:', silhoutte_score)