# Data science | Computer Science homework help

Q1 Textbook Exercises
Chapter 10 – Unsupervised Learning

Lab 1: Principal Component Analysis
Lab 2: K-Means Clustering
Lab 2: Hierarchical Clustering
Lab 3: NCI60 Data Example

Q2 Text Exercises – Applied
8. In Section 10.2.3, a formula for calculating PVE was given in Equation 10.8
On the USArrests data, calculate PVE in two ways:
(a) redo as was done in Section 10.2.3.
(b) By applying Equation 10.8 directly. Then, use those loadings in Equation 10.8 to obtain the PVE. These two approaches should give the same results.
https://botlnec.github.io/islp/sols/chapter10/exercise8/
Q3 Applied K-Means Clustering to the IRIS Dataset
https://www.kaggle.com/tonzowonzo/simple-k-means-clustering-on-the-iris-dataset
Q4 Apply K-Means Clustering to the World Happiness Report 2017
https://www.kaggle.com/unsdsn/world-happiness#2017.csv
NCI60_y.csvNCI60_X.csv2017.csvUSArrests.csvHW Clustering Methods.docx

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