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.

library(ggplot2)
ggplot(airquality,aes(x=Temp,y=Ozone))+geom_point(color="black", alpha=0.7,size=2)+
labs(title="Ozone vs Temperature", 
x="Temperature",y="ozone") + theme_minimal()
## Warning: Removed 37 rows containing missing values or values outside the scale range
## (`geom_point()`).

library(ggplot2)
ggplot(airquality,aes(x=Ozone))+
geom_histogram(bindwidth=10,fill="skyblue", color="black")+
labs(title="distribution of Ozone",
x="Ozone",y="Frequency")+
  theme_minimal()
## Warning in geom_histogram(bindwidth = 10, fill = "skyblue", color = "black"):
## Ignoring unknown parameters: `bindwidth`
## `stat_bin()` using `bins = 30`. Pick better value `binwidth`.
## Warning: Removed 37 rows containing non-finite outside the scale range
## (`stat_bin()`).

ggplot(airquality,aes(x=factor(Month), y=Wind, fill=Month))+
  geom_boxplot()+
  labs(title="wind speed by month", x="month",y="wind")+
  theme_minimal()+
  theme(legend.position="none")