people<-read.delim("clipboard")
people<-read.delim2("clipboard")
#Decimal point/comma issue - choose function to match your computer setting

# another option is to save data as a csv (comma separated values) file and import them from a file. Note that
# Excel produces semi-colon separated values file and this must be specified by the parameter sep. 
people<-read.csv("data1.csv", sep=";")

summary(people)
class(people)
class(people$eye.color)
class(people$height)
people$eye.color
quantile(people$height)
quantile(people$height)[3]
males<-people[people$sex=="M", ]
tapply(people$height, people$sex, median)

hist(people$height)
boxplot(people$height~people$sex)