R Examples

Simple DataFrame and ggplot2

Here is a simple data set that is put into an R Data Frame and then plotted using R's ggplot2 library:



In [1]:

    
year <- c(2000 ,   2001  ,  2002  ,  2003 ,   2004)
rate <- c(9.34 ,   8.50  ,  7.62  ,  6.93  ,  6.60)
df = data.frame(year, rate)



In [2]:

    
head(df)









    Out[2]:





  year rate
1 2000 9.34
2 2001 8.50
3 2002 7.62
4 2003 6.93
5 2004 6.60



In [3]:

    
library(ggplot2)



In [4]:

    
ggplot(df, aes(x=year, y=rate)) +
    geom_point(shape=1) +    # Use hollow circles
    geom_smooth(method=lm)   # Add linear regression line, with 95% confidence region









    Out[4]:

Iris data set



In [5]:

    
head(iris)









    Out[5]:





  Sepal.Length Sepal.Width Petal.Length Petal.Width Species
1          5.1         3.5          1.4         0.2  setosa
2          4.9         3.0          1.4         0.2  setosa
3          4.7         3.2          1.3         0.2  setosa
4          4.6         3.1          1.5         0.2  setosa
5          5.0         3.6          1.4         0.2  setosa
6          5.4         3.9          1.7         0.4  setosa



In [6]:

    
pairs(iris[1:4], main = "Iris Data", pch = 21,
      bg = c("red", "green3", "blue")[unclass(iris$Species)])



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