README.md

module-9-visualizing-R

First you need to install these packages

install.packages("lattice") install.packages("ggplot2") library(lattice) library(ggplot2)

Use the https://vincentarelbundock.github.io/Rdatasets/datasets.html link to get a dataset, below is the Cardiac Data for Domestic dogs which is the one I used

https://vincentarelbundock.github.io/Rdatasets/csv/boot/dogs.csv

data_from_file <- read.table(file.choose(),header=T,sep=",")[,2:3]

Plot the data via the built-in boxplot() function

boxplot((lvp*100)~mvo,data_from_file, main="Cardiac Data for Domestic Dogs", xlab="mvo", ylab="Percent lvp", las=1, col=rainbow(6))

Use the lattice package's bwplot() function to plot the data

bwplot((lvp*100)~mvo, data=data_from_file, horizontal=FALSE, main="lvp Rate", xlab="mvo", ylab="Percent lvp", las=1, par.settings = list(box.rectangle = list(fill=rainbow(6))))

Plotting data through ggplot2

Here I needed to take the Time data and get it converted to factors

data_for_gg <- data_from_file data_for_gg$mvo <- as.factor(data_for_gg$mvo)

Take the data and plot it as a geom_boxplot()

ggplot(data_for_gg, aes(x=mvo, y=lvp*100, fill=mvo)) + geom_boxplot() + labs(title="Cardiac Data for Domestic Dogs", x="mvo", y="Percent lvp") + theme_classic()