Advanced Operations on Data Frames

In the previous chapter, we performed a number of operations on data frames, including rbind(). There are many more operations that can be performed on data frames, which are very useful while preparing the data for the model. The following exercises will describe these operations in detail and illustrate them through their corresponding implementation in R:

• The order function: The order function is used to sort a data frame. We can specify ascending or descending order using the "-" symbol.
• The sort function: The sort function can also be used to sort the data. The order can be specified as "decreasing=TRUE" or "decreasing"="FALSE".
• The rank function: The rank function is used to rank the values in the data in a numerical manner.

Sorting, ordering, and ranking are operations that act as techniques to identify outliers. Outliers are values that are either too big or too small and do not fit in the value...