R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.

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.

x<- 1:10

[1] 1 2 3 4 5 6 7 8 9 10 y<-c(11,12,9,7,5,8,4,4,5,3)

plot(x,y)

plot(x,y,xlab=“Explanatory variable”)

plot(x,y,ylab=“Response variable”,xlab=“Explanatory variable”) plot(x,y,pch=3,ylab=“Response variable”,xlab=“Explanatory variable”)

Open triangles are plotting character pch=2

plot(x,y,pch=2,ylab=“Response variable”,xlab=“Explanatory variable”)

abline(lm(y~x))

lines(c(0,10),c(12,0),lty=2)

v<-c(2,4,6,8,10) w<-c(8,5,6,6,2)

points(v,w,pch=3)

abline(lm(w~v),lty=3)