Arithmetic Operations

#Addition of three numbers
1+1+1
## [1] 3
#Subtraction of one number from another
2-1
## [1] 1
#Two numbers multiplied together
2*2
## [1] 4
#Division of one number from another
2/1
## [1] 2
#Taking one number to the fourth power
2^4
## [1] 16
#Finding the third root of a number
(64)^(1/3)
## [1] 4
#Log to the base ten of two
log(2,10)
## [1] 0.30103

Vectors

#Created a vector of six numbers
c <- c(4,5,6,7,8,9)
#Printing the third element
c[3]
## [1] 6
#Finding the length of vector "c"
length(c)
## [1] 6

Matrix

#Creating a matrix
d <- matrix(c(1,3,5,7,2,4,6,8), nrow=2, byrow = TRUE)
#Assigning "f" to the addition of five and "d"
f <- d-5 
#Printing "f"
f
##      [,1] [,2] [,3] [,4]
## [1,]   -4   -2    0    2
## [2,]   -3   -1    1    3
#Printing the dimensions of "f"
dim(f)
## [1] 2 4

Determining Data Type

#Assigning an opertor to a value
k <- 5.25
#Assigning an opertor to a character
m <- 'frank'
#Determining data type
class(k)
## [1] "numeric"
#Determining data type
class(m)
## [1] "character"
#Converting to an integer
p <- as.integer(k)
#Printing "k"
p
## [1] 5
#Converting to a character
g <- as.character(k)
# 5.1 could not be added to "g" because I convert the orginal "k"(which was 5.25) to be read as a character not a number. 5.1 plus "g" results in an error.

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