library (dplyr)
## 
## Attaching package: 'dplyr'
## The following objects are masked from 'package:stats':
## 
##     filter, lag
## The following objects are masked from 'package:base':
## 
##     intersect, setdiff, setequal, union
head (mtcars, 10) %>% count (cyl)
##   cyl n
## 1   4 3
## 2   6 5
## 3   8 2

Tabloda 4 silindirli 3 tane araba 6 silindirli 5 tane araba 8 silindirli 2 tane araba vardır

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