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#R2-2-1
library("ggplot2") mydata <- read.csv(file.choose()) str(mydata) mydata$smoke <- as.factor(mydata$smoke) ggplot(mydata,aes(x = bwt,fill = smoke)) + geom_histogram(binwidth = 400,position = "dodge") + ggtitle("R2-2-1-Adobe_Freeman") + xlab("birth weight") + scale_fill_discrete(h=c(0,200),c=600,l=c(10,100),labels = c("no","yes"))
#R2-2-2 library("ggplot2") diamonds$color <- as.factor(diamonds$color) str(diamonds) ggplot(diamonds,aes(x = carat,color = color)) + geom_density(size = 0.3) + ylab("density") ggplot(diamonds,aes(x = price,y = ..density..,color = color)) + geom_line(stat = "density",size = 0.3,adjust = 1) + ylab("density") + ggtitle("R2-2-2-Adobe_Freeman") + theme_bw()
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