### IMPORTING DATASET FROM EXCEL

dataset<-read.table(file="C:/Users/clsgsr12/Desktop/keratakonus semiz.csv", header=TRUE, sep=",")
attach(dataset)
mean(Age)
mean(Preop_CCT)


### IMPORTING DATASET FROM STATA

install.packages("haven")
library(haven)
setwd("S:/_STAFF/Gulser/R NOTES/lesson_3_stata")
dataset<-read_dta('all480769.dta')
summary(dataset)
mean(glicT0)
attach(dataset)
mean(glicT0)