Page 213 - Data Science class 11
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6.6.1 types of Vectors
            There are two types of vectors:

               • Atomic vectors, of which there are six types:
                 ✶ logical

                 ✶ integer
                 ✶ double (for floating point numbers with double precision)
                 ✶ complex
                 ✶ character
                 ✶ raw
              Integer and double vectors are collectively known as numeric vectors.

               • Lists, which are sometimes called recursive vectors because lists can contain other lists.
              There are six basic vectors:
            When a person writes just one value in R, it becomes a vector of length one and belongs to one of the
            above-stated vector types. Such a vector is called a single-element vector.

            6.6.2 creating a Vector

            When you want to create a vector with more than one element, you should use the c() function, which means
            combining the elements into a vector.
            Enter the following code snippet:

                # Create a vector.
                apple <- c(‘red’,’green’,"yellow")
                print(apple)
                # Get the class of the vector.
                print(class(apple))
            When you execute the above code it produces the following result:




















            A vector is created using the function c() (to concatenate), as follows:

                # Store your friends’age in a numeric vector
                friend_ages <- c(27, 25, 29, 26) # Create
                friend_ages # Print
                [1] 27 25 29 26






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