Code at end of 8.2.1 gives an error

RobertTalbert commented 10 months ago

The code is

students <- students |>
  janitor::clean_names() |>
  mutate(
    meal_plan = factor(meal_plan),
    age = parse_number(if_else(age == "five", "5", age))
  )

Running this in R Studio (Version 2023.09.1+494) with R 4.3.1 gives the error:

Error in `mutate()`:
ℹ In argument: `age = parse_number(if_else(age == "five", "5", age))`.
Caused by error in `if_else()`:
! Can't combine `true` <character> and `false` <double>.

I had previously imported students using a CSV created from the text at the beginning of 8.2. (However running the code still changes the "five" that's in the CSV to a numerical 5 so I'm not sure if this is really an error or just an R warning.)

mine-cetinkaya-rundel commented 10 months ago

Which version of dplyr are you using? With 1.1.3 I'm not getting an error here.

mine-cetinkaya-rundel commented 10 months ago

And here is a reprex with session info in case that's helpful:

library(tidyverse)
library(janitor)

students <- read_csv("https://raw.githubusercontent.com/hadley/r4ds/main/data/students.csv", na = c("N/A", ""))
#> Rows: 6 Columns: 5
#> ── Column specification ────────────────────────────────────────────────────────
#> Delimiter: ","
#> chr (4): Full Name, favourite.food, mealPlan, AGE
#> dbl (1): Student ID
#> 
#> ℹ Use `spec()` to retrieve the full column specification for this data.
#> ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.
students <- students |>
  janitor::clean_names() |>
  mutate(
    meal_plan = factor(meal_plan),
    age = parse_number(if_else(age == "five", "5", age))
  )

students
#> # A tibble: 6 × 5
#>   student_id full_name        favourite_food     meal_plan             age
#>        <dbl> <chr>            <chr>              <fct>               <dbl>
#> 1          1 Sunil Huffmann   Strawberry yoghurt Lunch only              4
#> 2          2 Barclay Lynn     French fries       Lunch only              5
#> 3          3 Jayendra Lyne    <NA>               Breakfast and lunch     7
#> 4          4 Leon Rossini     Anchovies          Lunch only             NA
#> 5          5 Chidiegwu Dunkel Pizza              Breakfast and lunch     5
#> 6          6 Güvenç Attila    Ice cream          Lunch only              6

^{Created on 2023-11-09 with reprex v2.0.2}

Session info

``` r sessioninfo::session_info() #> ─ Session info ─────────────────────────────────────────────────────────────── #> setting value #> version R version 4.3.1 (2023-06-16) #> os macOS Sonoma 14.1 #> system aarch64, darwin20 #> ui X11 #> language (EN) #> collate en_US.UTF-8 #> ctype en_US.UTF-8 #> tz America/New_York #> date 2023-11-09 #> pandoc 3.1.8 @ /opt/homebrew/bin/ (via rmarkdown) #> #> ─ Packages ─────────────────────────────────────────────────────────────────── #> package * version date (UTC) lib source #> bit 4.0.5 2022-11-15 [1] CRAN (R 4.3.0) #> bit64 4.0.5 2020-08-30 [1] CRAN (R 4.3.0) #> cli 3.6.1 2023-03-23 [1] CRAN (R 4.3.0) #> colorspace 2.1-0 2023-01-23 [1] CRAN (R 4.3.0) #> crayon 1.5.2 2022-09-29 [1] CRAN (R 4.3.0) #> curl 5.1.0 2023-10-02 [1] CRAN (R 4.3.1) #> digest 0.6.33 2023-07-07 [1] CRAN (R 4.3.0) #> dplyr * 1.1.3 2023-09-03 [1] CRAN (R 4.3.0) #> evaluate 0.22 2023-09-29 [1] CRAN (R 4.3.1) #> fansi 1.0.5 2023-10-08 [1] CRAN (R 4.3.1) #> fastmap 1.1.1 2023-02-24 [1] CRAN (R 4.3.0) #> forcats * 1.0.0 2023-01-29 [1] CRAN (R 4.3.0) #> fs 1.6.3 2023-07-20 [1] CRAN (R 4.3.0) #> generics 0.1.3 2022-07-05 [1] CRAN (R 4.3.0) #> ggplot2 * 3.4.4 2023-10-12 [1] CRAN (R 4.3.1) #> glue 1.6.2 2022-02-24 [1] CRAN (R 4.3.0) #> gtable 0.3.4 2023-08-21 [1] CRAN (R 4.3.0) #> hms 1.1.3 2023-03-21 [1] CRAN (R 4.3.0) #> htmltools 0.5.6.1 2023-10-06 [1] CRAN (R 4.3.1) #> janitor * 2.2.0 2023-02-02 [1] CRAN (R 4.3.0) #> knitr 1.44 2023-09-11 [1] CRAN (R 4.3.0) #> lifecycle 1.0.3 2022-10-07 [1] CRAN (R 4.3.0) #> lubridate * 1.9.3 2023-09-27 [1] CRAN (R 4.3.1) #> magrittr 2.0.3 2022-03-30 [1] CRAN (R 4.3.0) #> munsell 0.5.0 2018-06-12 [1] CRAN (R 4.3.0) #> pillar 1.9.0 2023-03-22 [1] CRAN (R 4.3.0) #> pkgconfig 2.0.3 2019-09-22 [1] CRAN (R 4.3.0) #> purrr * 1.0.2 2023-08-10 [1] CRAN (R 4.3.0) #> R.cache 0.16.0 2022-07-21 [1] CRAN (R 4.3.0) #> R.methodsS3 1.8.2 2022-06-13 [1] CRAN (R 4.3.0) #> R.oo 1.25.0 2022-06-12 [1] CRAN (R 4.3.0) #> R.utils 2.12.2 2022-11-11 [1] CRAN (R 4.3.0) #> R6 2.5.1 2021-08-19 [1] CRAN (R 4.3.0) #> readr * 2.1.4 2023-02-10 [1] CRAN (R 4.3.0) #> reprex 2.0.2 2022-08-17 [1] CRAN (R 4.3.0) #> rlang 1.1.1 2023-04-28 [1] CRAN (R 4.3.0) #> rmarkdown 2.25 2023-09-18 [1] CRAN (R 4.3.1) #> scales 1.2.1 2022-08-20 [1] CRAN (R 4.3.0) #> sessioninfo 1.2.2 2021-12-06 [1] CRAN (R 4.3.0) #> snakecase 0.11.1 2023-08-27 [1] CRAN (R 4.3.0) #> stringi 1.7.12 2023-01-11 [1] CRAN (R 4.3.0) #> stringr * 1.5.0 2022-12-02 [1] CRAN (R 4.3.0) #> styler 1.10.2 2023-08-29 [1] CRAN (R 4.3.0) #> tibble * 3.2.1 2023-03-20 [1] CRAN (R 4.3.0) #> tidyr * 1.3.0 2023-01-24 [1] CRAN (R 4.3.0) #> tidyselect 1.2.0 2022-10-10 [1] CRAN (R 4.3.0) #> tidyverse * 2.0.0 2023-02-22 [1] CRAN (R 4.3.0) #> timechange 0.2.0 2023-01-11 [1] CRAN (R 4.3.0) #> tzdb 0.4.0 2023-05-12 [1] CRAN (R 4.3.0) #> utf8 1.2.3 2023-01-31 [1] CRAN (R 4.3.0) #> vctrs 0.6.4 2023-10-12 [1] CRAN (R 4.3.1) #> vroom 1.6.4 2023-10-02 [1] CRAN (R 4.3.1) #> withr 2.5.1 2023-09-26 [1] CRAN (R 4.3.1) #> xfun 0.40 2023-08-09 [1] CRAN (R 4.3.0) #> yaml 2.3.7 2023-01-23 [1] CRAN (R 4.3.0) #> #> [1] /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/library #> #> ────────────────────────────────────────────────────────────────────────────── ```

hadley / r4ds

Code at end of 8.2.1 gives an error #1593