9.9 Shuffle Rows
Using dplyr::sample_frac() with size=1 (the
default) will randomly shuffle the rows of the dataset.
## # A tibble: 208,495 × 24
## date location min_temp max_temp rainfall evaporation sunshine
## <date> <chr> <dbl> <dbl> <dbl> <dbl> <dbl>
## 1 2013-10-07 Hobart 3.3 13.7 0 7.4 8.6
## 2 2017-07-20 PearceRAAF 11.6 18 12 NA 7.7
## 3 2009-10-03 Darwin 25.5 33 0 5.2 10.1
## 4 2017-12-28 Ballarat 20.1 30.4 0 NA NA
## 5 2013-03-08 Sale 15.3 32.6 0 5.8 11.6
## 6 2013-07-09 Mildura -0.2 12.7 0 1.4 1.3
## 7 2013-03-10 GoldCoast 20 28.1 2.8 NA NA
## 8 2021-08-23 Dartmoor 5.2 12.7 4 NA NA
## 9 2017-05-04 Mildura 2 18.1 0 3 NA
## 10 2009-02-02 Adelaide 28.3 38.8 0 24 11
## # ℹ 208,485 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
