names(attitude)  # Variablennamen anzeigen

## [1] "rating"     "complaints" "privileges" "learning"   "raises"    
## [6] "critical"   "advance"

head(attitude)  # Ersten Zeilen des Datensatzes

##   rating complaints privileges learning raises critical advance
## 1     43         51         30       39     61       92      45
## 2     63         64         51       54     63       73      47
## 3     71         70         68       69     76       86      48
## 4     61         63         45       47     54       84      35
## 5     81         78         56       66     71       83      47
## 6     43         55         49       44     54       49      34

attach(attitude)  # Variablen verfügbar machen
mean(rating)  # Mittelwert der Ratings

## [1] 64.63

quantile(rating)  # Wichtige Quantile

##    0%   25%   50%   75%  100% 
## 40.00 58.75 65.50 71.75 85.00

median(rating)  # Median des Merkmals

## [1] 65.5

var(rating)  # Varianz berechnen

## [1] 148.2

sd(rating)  # Standardabweichung der Ratings

## [1] 12.17

hist(rating)  # Histogramm der Variable rating

hist(ratings, breaks = 10)  # Histogramm mit 10 Klassen

## Error: Objekt 'ratings' nicht gefunden

plot(rating, complaints)  # Streudiagramm

pairs(attitude)  # Paarweise Streudiagramme