3.3.1 Select and Order Data

OREdplyr functions for selecting and ordering data in columns and rows of an ore.frame object.

Table 3-2 Selecting and Ordering Columns and Rows

Function	Description
arrange arrange_	Orders rows by the specified columns.
desc	Sorts an ore.number, ore.factor, or ore.character object in descending order
distinct distinct_	Selects unique rows from an input ore.frame object over the specified columns.
filter filter_	Filters rows by matching the specified condition.
mutate mutate_	Adds new columns.
rename rename_	Renames the specified columns and keeps all columns.
select select_	Selects only the specified columns.
slice slice_	Selects rows by position; ignores the grouping of the input ordered ore.frame object.
tranmute tranmute_	Adds new columns and drops the existing columns.

Examples of using these functions are the following:

• Examples of Selecting Columns
  Examples of the select and rename functions of the OREdplyr package.
• Examples of Programming with select_
  Examples of the select_ function of the OREdplyr package.
• Examples of Selecting Distinct Columns
  Examples of the distinct and arrange functions of the OREdplyr package.
• Examples of Selecting Rows by Position
  Examples of the slice and filter functions of the OREdplyr package.
• Examples of Arranging Columns
  Examples of the arrange and desc functions of the OREdplyr package.
• Examples of Filtering Columns
  Examples of the filter function of the OREdplyr package.
• Examples of Mutating Columns
  Examples of the mutate and transmute functions of the OREdplyr package.