library(knitr) ## Set up the size of plots in the output

I. Headings: There are six levels of headings.

Header 1

Header 2

Header 3

Header 4

Header 5
Header 6

II. Emphasis

Wafa Ben RIchard Bold

III. Lists

  • Mean
  • Variance

  • SD

  • Mean
  • Variance

  • SD

  1. Mean
  2. Variance
  3. SD
  4. s.e.

Set up the size of plots in the output

VI. Import data and summarize data

tips <- read.csv("http://www.ggobi.org/book/data/tips.csv")
summary(tips)
##       obs            totbill           tip         sex     smoker   
##  Min.   :  1.00   Min.   : 3.07   Min.   : 1.000   F: 87   No :151  
##  1st Qu.: 61.75   1st Qu.:13.35   1st Qu.: 2.000   M:157   Yes: 93  
##  Median :122.50   Median :17.80   Median : 2.900                    
##  Mean   :122.50   Mean   :19.79   Mean   : 2.998                    
##  3rd Qu.:183.25   3rd Qu.:24.13   3rd Qu.: 3.562                    
##  Max.   :244.00   Max.   :50.81   Max.   :10.000                    
##   day        time          size     
##  Fri:19   Day  : 68   Min.   :1.00  
##  Sat:87   Night:176   1st Qu.:2.00  
##  Sun:76               Median :2.00  
##  Thu:62               Mean   :2.57  
##                       3rd Qu.:3.00  
##                       Max.   :6.00

VII. Including Plots

You can also embed plots, for example:

library(ggplot2)
p<-ggplot(data=tips,aes(smoker,fill=time))
p + geom_bar(width=0.5)

## Set up the size of plots in the output

V. Images