
Following are the key points described later in this article:
- What are Vectors?
- Vectors – Code Examples
What are Vectors?
- Integer
- Numeric
- Character
For example, c(1,3,5,7,9) or c(“apple”, “google”, “microsoft”). Following is how it is represented in R.
oddnos = c( 1,3,5,7,9)
companies = c( "apple", "google", "microsoft")
Vectors – Code Examples
Consider an example of doctors with following details:
- Name
- Age
- Salary
Following code example displays command to store each of the above data and how to access them. Pay attention to the fact that vector of one type store data of same type. Following code example demonstrate vector of types such as following:
- Character
- Integer
- Numeric
# Character Vector representing collection of doctors' names
docNames <- c( "chris", "calvin", "scott" );
# Numeric Vector representing collection of doctors' salary
docSalary <- c( 67345.50, 89765, 123432 );
# Integer Vector representing collection of doctors' age
docAge <- c( 25, 29, 27 );
# Access doctors' names
docNames # Displays [1] chris, calvin, scott
docNames [1] # Displays [1] chris
# Vector storing docNames and docAge
docSummary <- c( docNames, docAge );
# Display details as String; Pay attention that all data is converted as character vector
docSummary # Displays [1] "chris", "calvin", "scott", "25", "29", "27"
- Learn R – What are Vectors – Code Examples - October 12, 2014
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