Switching from Base R to tidyverse

base_r_to_tidyverse.txt

Taken from http://www.significantdigits.org/2017/10/switching-from-base-r-to-tidyverse/

| Base R command                    | Tidyverse Command                          | Comment                                                       |
|-----------------------------------+--------------------------------------------+---------------------------------------------------------------|
| read.csv()                        | read_csv()                                 | also see read_delim(), read_tsv() and readxl::read_xlsx()     |
| sort(), order()                   | arrange()                                  | see also order_by()                                           |
| mtcars$mpg = ...                  | mutate()                                   | see also transmute() which drops existing variables           |
| mtcars[,c(“mpg”, “am”)], subset() | select(), rename()                         | see also pull()                                               |
| mtcars[mtcars$am == 1,], subset() | filter()                                   |                                                               |
| aggregate()                       | summarise(), summarize(), do()             | see also varaints like summarize_if()                         |
| ifelse()                          | if_else(), case_when()                     | see also near()                                               |
| unique()                          | distinct()                                 |                                                               |
| length(unique())                  | n_distinct()                               |                                                               |
| sample(), sample.int()            | sample_n(), sample_frac()                  |                                                               |
| all.equal()                       | all_equal()                                |                                                               |
| merge()                           | inner_join(), left_join()                  | see also right_join(), full_join(), semi_join(), anti_join()  |
| rbind(), cbind()                  | bind_rows(), bind_cols()                   |                                                               |
| x >= left & x <= right            | between()                                  | see also near()                                               |
| nrow(), sum()                     | tally(), count(), add_tally(), add_count() |                                                               |
| c()                               | combine()                                  |                                                               |
| extends base R                    | cumall(), cumany(), cummean()              |                                                               |
| mtcars$mpg[1,] etc                | first(), last(), n(), top_n()              |                                                               |
| split(), aggregate()              | group_by()                                 | see also ungroup()                                            |
| intersect(), union()              | intersect(), union()                       |                                                               |
| No equivalent command in base R   | lead(), lag()                              |                                                               |
| ifelse(..., NA)                   | na_if()                                    |                                                               |
| switch()                          | recode()                                   | see also forcats package when dealing with factors            |
| mtcars[3:5,]                      | slice()                                    |                                                               |
| seq_along(), quantile()           | row_number(), ntile(), min_ran() etc       |                                                               |
| no easy way                       | complete(), expand()                       | often used with nesting(), see also full_seq()                |
| expand.grid()                     | crossing()                                 |                                                               |
| ifelse(is.na(...), ...)           | drop_na(), replace_na()                    | see also fill(), coalesce()                                   |
| some mix of paste/strsplit        | separate(), unite()                        |                                                               |
| reshape2::dcast()                 | spread()                                   |                                                               |
| reshape2::melt()                  | gather()                                   |                                                               |
| replicate()                       | rerun()                                    |                                                               |
| unlist(lapply(x, `[[`, n))        | pluck()                                    |                                                               |
| lapply(), sapply()                | map(), map2()                              | see also map_chr(), map_lgl(), map_int(), map_dbl(), map_df() |
| paste0()                          | glue()                                     |                                                               |