Chapter 20 Character Values

A chracter object is a string value

x= as.character(842)
y= as.character("Davut")
print(x)

## [1] "842"

print(y)

## [1] "Davut"

class(x)    # print class of x 

## [1] "character"

class(y)

## [1] "character"

Concatenate two characters

firstname="Davut"; lastname="Ayan"
paste(firstname, lastname)   # concatenate

## [1] "Davut Ayan"

Create a readable string

sprintf("%s has %d dollars", "Davut", 5000)

## [1] "Davut has 5000 dollars"

Extract a substring

substr("Davut is a crazy person", start=2, stop = 5)

## [1] "avut"

vectors