Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Previously searched by you
Previously searched by you
logo
  • Universiteit Gent (UGent)
  • Handelsingenieur
  • Data Mining
To add items to your wishlist, you must be logged in
Summary

Summary Data Mining Unsupervised Learning

Rating
-
Sold
-
Pages
10
Uploaded on
13-08-2023
Written in
2022/2023

This document contains a summary of the theory seen in the lab sessions. In addition, it also contains solutions to the exercises of the lab sessions.

Institution
Universiteit Gent (UGent)
Course
Data Mining

Content preview

Unsupervised learning
PRINCIPAL COMPONENTS ANALYSIS

apply(): allows us to apply a function (here mean() function)




1 = mean of the rows, 2 = mean of the columns

prcomp(): performs principal components analysis




By default, prcomp() will center the variables to have mean zero

pr.out$rotation: provides principal component loadings




prcomp(): no need to multiply data by principal component loading vectors in order

to obtain the principal component score vectors => x has its columns principal

component score vectors(kth column is kth principal component score vector)




plot first two principal components




Scale = 0 : ensures that arrows are scaled to represent the loadings
Report Copyright Violation

Written for

Institution
Universiteit Gent (UGent)
Study
Handelsingenieur
Course
Data Mining
All documents for this subject (7)

Document information

Uploaded on
August 13, 2023
Number of pages
10
Written in
2022/2023
Type
SUMMARY

Subjects

  • data mining lab sessies
  • samenvatting theorie lab sessies
  • oplossingen oefeningen lab sessies
$4.18
Get access to the full document:
Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF
Get to know the seller
Seller avatar
Worstje2021
5.0
(1)

Also available in package deal

Thumbnail
Package deal
Data Mining samenvatting alle lab sessies solutions exercises
-
6 2023
$ 10.17 More info

Get to know the seller

Seller avatar
Worstje2021 Universiteit Gent
View profile
Follow You need to be logged in order to follow users or courses
Sold
7
Member since
2 year
Number of followers
5
Documents
13
Last sold
2 year ago

5.0

1 reviews

5
1
4
0
3
0
2
0
1
0

Recently viewed by you

Thumbnail
Package deal
Eindtermen kwestie 1 t/m 4, wat maakt de mens filosofie VWO
-
18 2024
$ 13.76 More info

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Learn more Create citation
Working on your references?

Frequently asked questions