9.9 Shuffle Rows
Using dplyr::sample_frac() with size=1 (the
default) will randomly shuffle the rows of the dataset.
## # A tibble: 226,868 × 24
## date location min_temp max_temp rainfall evaporation sunshine
## <date> <chr> <dbl> <dbl> <dbl> <dbl> <dbl>
## 1 2019-08-10 Portland 2.5 11.8 24 NA NA
## 2 2020-02-02 MelbourneAirport 12.9 24.4 15.6 4.4 9
## 3 2015-07-06 Cairns 19 26.5 1 2.2 6.9
## 4 2022-03-15 MelbourneAirport 16.3 26 0 6.2 3.6
## 5 2022-10-15 GoldCoast 15.9 24.6 0 NA NA
## 6 2022-10-25 SalmonGums 7 21.6 5.4 NA NA
## 7 2017-11-28 CoffsHarbour 17 27.2 0 NA NA
## 8 2018-11-08 PerthAirport 6.1 29.2 0 7.2 12.2
## 9 2014-09-27 Canberra 4.1 18.2 0 NA NA
## 10 2018-03-05 Wollongong 19.4 20.9 0 NA NA
## # ℹ 226,858 more rows
## # ℹ 17 more variables: wind_gust_dir <ord>, wind_gust_speed <dbl>,
## # wind_dir_9am <ord>, wind_dir_3pm <ord>, wind_speed_9am <dbl>,
## # wind_speed_3pm <dbl>, humidity_9am <int>, humidity_3pm <int>,
## # pressure_9am <dbl>, pressure_3pm <dbl>, cloud_9am <int>, cloud_3pm <int>,
## # temp_9am <dbl>, temp_3pm <dbl>, rain_today <fct>, risk_mm <dbl>,
## # rain_tomorrow <fct>Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0
