9.9 Shuffle Rows
Using dplyr::sample_frac() with size=1 (the
default) will randomly shuffle the rows of the dataset.
## # A tibble: 275,410 × 24
## date location min_temp max_temp rainfall evaporation sunshine
## <date> <chr> <dbl> <dbl> <dbl> <dbl> <dbl>
## 1 2022-12-13 Woomera 12 24.5 0 NA NA
## 2 2014-01-03 Canberra 17.2 35.5 0 NA NA
## 3 2010-05-23 NorahHead 10.9 17 43.4 NA NA
## 4 2010-01-07 Mildura 15.8 34.6 0 12 13.5
## 5 2019-07-01 Brisbane 13.8 23.5 0 2 7.3
## 6 2014-11-15 Katherine 26.5 32 0 9 NA
## 7 2010-07-23 Darwin 22.2 32.7 0 8.2 10.9
## 8 2015-03-14 GoldCoast 21.1 28.7 0 NA NA
## 9 2021-07-02 Walpole 4.8 15.2 0.2 NA NA
## 10 2011-02-09 Tuggeranong 12.5 24.5 0 NA NA
## # ℹ 275,400 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
