install.packages(“HSAUR2”) library(HSAUR2)

data("Forbes2000",package="HSAUR2")
head(Forbes2000)
##   rank                name        country             category  sales profits
## 1    1           Citigroup  United States              Banking  94.71   17.85
## 2    2    General Electric  United States        Conglomerates 134.19   15.59
## 3    3 American Intl Group  United States            Insurance  76.66    6.46
## 4    4          ExxonMobil  United States Oil & gas operations 222.88   20.96
## 5    5                  BP United Kingdom Oil & gas operations 232.57   10.27
## 6    6     Bank of America  United States              Banking  49.01   10.81
##    assets marketvalue
## 1 1264.03      255.30
## 2  626.93      328.54
## 3  647.66      194.87
## 4  166.99      277.02
## 5  177.57      173.54
## 6  736.45      117.55
summary(Forbes2000)
##       rank            name                     country   
##  Min.   :   1.0   Length:2000        United States :751  
##  1st Qu.: 500.8   Class :character   Japan         :316  
##  Median :1000.5   Mode  :character   United Kingdom:137  
##  Mean   :1000.5                      Germany       : 65  
##  3rd Qu.:1500.2                      France        : 63  
##  Max.   :2000.0                      Canada        : 56  
##                                      (Other)       :612  
##                    category        sales            profits        
##  Banking               : 313   Min.   :  0.010   Min.   :-25.8300  
##  Diversified financials: 158   1st Qu.:  2.018   1st Qu.:  0.0800  
##  Insurance             : 112   Median :  4.365   Median :  0.2000  
##  Utilities             : 110   Mean   :  9.697   Mean   :  0.3811  
##  Materials             :  97   3rd Qu.:  9.547   3rd Qu.:  0.4400  
##  Oil & gas operations  :  90   Max.   :256.330   Max.   : 20.9600  
##  (Other)               :1120                     NA's   :5         
##      assets          marketvalue    
##  Min.   :   0.270   Min.   :  0.02  
##  1st Qu.:   4.025   1st Qu.:  2.72  
##  Median :   9.345   Median :  5.15  
##  Mean   :  34.042   Mean   : 11.88  
##  3rd Qu.:  22.793   3rd Qu.: 10.60  
##  Max.   :1264.030   Max.   :328.54  
##

BASIC R COMMANDS

R Commands are the basic for the data analysis and statistical modelling in R Environment.

class(Forbes2000)
## [1] "data.frame"
str(Forbes2000)
## 'data.frame':    2000 obs. of  8 variables:
##  $ rank       : int  1 2 3 4 5 6 7 8 9 10 ...
##  $ name       : chr  "Citigroup" "General Electric" "American Intl Group" "ExxonMobil" ...
##  $ country    : Factor w/ 61 levels "Africa","Australia",..: 60 60 60 60 56 60 56 28 60 60 ...
##  $ category   : Factor w/ 27 levels "Aerospace & defense",..: 2 6 16 19 19 2 2 8 9 20 ...
##  $ sales      : num  94.7 134.2 76.7 222.9 232.6 ...
##  $ profits    : num  17.85 15.59 6.46 20.96 10.27 ...
##  $ assets     : num  1264 627 648 167 178 ...
##  $ marketvalue: num  255 329 195 277 174 ...
dim(Forbes2000)
## [1] 2000    8

Plotting Histogram

A histogram shows statistical data that correlates with the frequency of a variable and the size of its range in consecutive numerical intervals.

Discussion: