Characteri z ing a single v ariable DATA VISU AL IZATION IN R Ron - - PowerPoint PPT Presentation

▶
characteri z ing a single v ariable
SMART_READER_LITE
LIVE PREVIEW

Characteri z ing a single v ariable DATA VISU AL IZATION IN R Ron - - PowerPoint PPT Presentation

Jul 12, 2023 29 likes •319 views

Characteri z ing a single v ariable DATA VISU AL IZATION IN R Ron Pearson Instr u ctor What do w e e x pect to see ? DATA VISUALIZATION IN R What do w e e x pect to see ? DATA VISUALIZATION IN R What do w e e x pect to see ? DATA

slide-1
SLIDE 1

Characterizing a single variable

DATA VISU AL IZATION IN R

Ron Pearson

Instructor

slide-2
SLIDE 2

DATA VISUALIZATION IN R

What do we expect to see?

slide-3
SLIDE 3

DATA VISUALIZATION IN R

What do we expect to see?

slide-4
SLIDE 4

DATA VISUALIZATION IN R

What do we expect to see?

slide-5
SLIDE 5

DATA VISUALIZATION IN R

Useful characterization tools in base R graphics

slide-6
SLIDE 6

DATA VISUALIZATION IN R

Useful tools even when data are not Gaussian

slide-7
SLIDE 7

Let's practice!

DATA VISU AL IZATION IN R

slide-8
SLIDE 8

Visualizing relations between two variables

DATA VISU AL IZATION IN R

Ron Pearson

Instructor

slide-9
SLIDE 9

DATA VISUALIZATION IN R

Scatterplots

library(MASS) plot(medv ~ rm, data = Boston)

slide-10
SLIDE 10

DATA VISUALIZATION IN R

library(MASS) plot(medv ~ rm, data = Boston)

slide-11
SLIDE 11

DATA VISUALIZATION IN R

library(MASS) plot(medv ~ rm, data = Boston)

slide-12
SLIDE 12

DATA VISUALIZATION IN R

library(MASS) plot(medv ~ rm, data = Boston)

slide-13
SLIDE 13

DATA VISUALIZATION IN R

Sunflowerplots

slide-14
SLIDE 14

DATA VISUALIZATION IN R

Sunflowerplots

slide-15
SLIDE 15

DATA VISUALIZATION IN R

Boxplots

slide-16
SLIDE 16

DATA VISUALIZATION IN R

Boxplots

library(MASS) boxplot(crim ~ rad, data = Boston, log = "y", las = 1, xlab = "rad") title("Variation of Boston$crim values over discrete Boston$rad values")

slide-17
SLIDE 17

DATA VISUALIZATION IN R

Mosaic plot

mosaicplot(cyl ~ gear, data = mtcars, main ="Mosaicplot")

slide-18
SLIDE 18

Let's practice!

DATA VISU AL IZATION IN R

slide-19
SLIDE 19

Showing more complex relations between variables

DATA VISU AL IZATION IN R

Ron Pearson

Instructor

slide-20
SLIDE 20

DATA VISUALIZATION IN R

Bagplots: two-dimensional boxplots

slide-21
SLIDE 21

DATA VISUALIZATION IN R

Correlation coefficient

Relationship between two numerical variables Number between -1 and +1

slide-22
SLIDE 22

DATA VISUALIZATION IN R

Correlation coefficient

Relationship between two numerical variables Number between -1 and +1

slide-23
SLIDE 23

DATA VISUALIZATION IN R

Correlation coefficient

Relationship between two numerical variables Number between -1 and +1

slide-24
SLIDE 24

DATA VISUALIZATION IN R

Correlation plots

mtCor <- cor(mtcars) library(corrplot) corrplot(mtCor, method = "ellipse")

slide-25
SLIDE 25

DATA VISUALIZATION IN R

slide-26
SLIDE 26

DATA VISUALIZATION IN R

Displaying decision tree models

library(rpart) treeModel <- rpart(mpg ~ ., data = mtcars) plot(treeModel) text(treeModel, cex = 1.6, col = "red", xpd = TRUE)

slide-27
SLIDE 27

DATA VISUALIZATION IN R

Displaying decision tree models

slide-28
SLIDE 28

DATA VISUALIZATION IN R

Displaying decision tree models

slide-29
SLIDE 29

Let's practice!

DATA VISU AL IZATION IN R