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toyeiei/dplyr1.R

Last active February 2, 2019 03:19
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glimpse dplyr 1
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dplyr1.R
# basic data wrangling
# 1. select columns
mtcars %>% select(mpg, hp, wt)
mtcars %>% select(1:4, 5)
# 2. filter rows
mtcars %>% filter(hp <= 100)
mtcars %>% filter(hp <= 100 & am == 1)
mtcars %>% filter(hp <= 90 | am == 0)
# 3. arrange rows
mtcars %>% arrange(mpg)
mtcars %>% arrange(desc(mpg))
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