Function | Purpose | Docs |
---|---|---|
select |
Selects variables in a data frame | π |
filter |
Subsets a data frame, retaining all rows that satisfy your conditions | π |
rename |
Changes the names of individual variables | π |
arrange |
Orders the rows of a data frame by the values of selected columns | π |
bind_rows |
Binds many data frames into one | π |
*_join |
Joins add columns from y to x, matching rows based on the keys | π |
mutate |
Adds new variables and preserves existing ones | π |
if_else |
Returns a value with the same shape as test which is filled with elements selected from either yes or no depending on whether the element of test is TRUE or FALSE | π |
case_when |
Allows you to vectorise multiple if_else() statements | π |
rowwise |
Allows you to compute on a data frame a row-at-a-time | π |
summarize |
Creates a new data frame. It will have one (or more) rows for each combination of grouping variables; if there are no grouping variables, the output will have a single row summarising all observations in the input. It will contain one column for each grouping variable and one column for each of the summary statistics that you have specified. | π |
group_by |
Takes an existing tbl and converts it into a grouped tbl where operations are performed βby groupβ | π |
count |
Lets you quickly count the unique values of one or more variables | π |
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