Vector and matrix in R language

 Hello everyone, In the last post We all saw about R language basic concept which was pretty easy right, so today we are going to start with vectors and matrix in R language. So let's start.

Vector: vector consist of Data element in of same data type. The data element of a vector are called component. 

To create a vector we use a function i.e. c().

Example: 1) a <- c(1,2,3,4,5,6,7)

                   Print (a)

Output: 1,2,3,4,5,6,7.

2) a<-c(1:10)

    print (a)

Here colon is used as a range from 1 to 10

Output: 1,2,3,4,5,6,7,8,9,10.

To find a length of vector we use a function length ().

length (a)    # output will be 10 for second example.

To print a particular element in vector we use a square bracket ([]) i.e. a[5]   # This will print the fifth Element of vector.

Matrix: Matrix is a collection of data element which are arrange in 2dimensional rectangular layout.

  To create a Matrix we use a function matrix(). 

Syntax: matrix(data, nrow,ncol)

- Where data is the input in vector 

-nrow stand's for number of rows

Example:  # program to create Matrix

                   a<-matrix(c(1,2,3,4,5,6,7,8), nrow=                                         2,ncol=4)

                   print (a)

Output: 1 3 5 7

               2 4 6 8

In next post we will see about list and Array.