R Markdown

Hi Everybody! this is an R Markdown document. You can do italics and bold, and include [link]{https://www.youtube.com/watch?v=JWdZEumNRmI&list=RDJWdZEumNRmI&start_radio=1}

R code

values <- rnorm(5)
values
## [1]  0.4335892 -0.8440928  0.6919400 -0.5891693 -0.3457508

include R code

# load package and data

  library(ggplot2)

  data(mpg, package="ggplot2")

  # mpg <- read.csv("http://goo.gl/uEeRGu")


  # Scatterplot

  theme_set(theme_bw())  # pre-set the bw theme.

  g <- ggplot(mpg, aes(cty, hwy))

  g + geom_jitter(width = .5, size=1) +

    labs(subtitle="mpg: city vs highway mileage",

         y="hwy",

         x="cty",

         title="Jittered Points")

Insert pictures

We can insert an image like this: alt text When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

Including Plots

You can also embed plots, for example:

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.