Machine Learning with R Cookbook - Second Edition

How to do it...

Perform the following steps to read and write data with R:

1. To view the built-in datasets of R, type the following command:

        > data() 

2. R will return a list of datasets in a dataset package, and the list comprises the name and description of each dataset.
3. To load the dataset iris into an R session, type the following command:

        > data(iris)  

4. The dataset iris is now loaded into the DataFrame format, which is a common data structure in R to store a data table.

5. To view the data type of iris, simply use the class function:

        > class(iris)
        [1] "data.frame"

6. The data.frame console print shows that the iris dataset is in the structure of DataFrame.
7. Use the save function to store an object in a file. For example, to save the loaded ...