Resources

Function References

Function Purpose Docs
select Selects variables in a data frame πŸ“„
filter Subsets a data frame, retaining all rows that satisfy your conditions πŸ“„
rename Changes the names of individual variables πŸ“„
arrange Orders the rows of a data frame by the values of selected columns πŸ“„
bind_rows Binds many data frames into one πŸ“„
*_join Joins add columns from y to x, matching rows based on the keys πŸ“„
mutate Adds new variables and preserves existing ones πŸ“„
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 πŸ“„
case_when Allows you to vectorise multiple if_else() statements πŸ“„
rowwise Allows you to compute on a data frame a row-at-a-time πŸ“„
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. πŸ“„
group_by Takes an existing tbl and converts it into a grouped tbl where operations are performed β€œby group” πŸ“„
count Lets you quickly count the unique values of one or more variables πŸ“„

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