Aliases: extract extract2 use_series add subtract multiply_by multiply_by_matrix divide_by divide_by_int raise_to_power and or mod is_in equals is_greater_than is_weakly_greater_than is_less_than is_weakly_less_than not 'n'est pas' set_colnames set_rownames set_names set_class inset inset2 set_attr set_attributes
Keywords:
### ** Examples iris %>% extract(, 1:4) %>% head
Sepal.Length Sepal.Width Petal.Length Petal.Width 1 5.1 3.5 1.4 0.2 2 4.9 3.0 1.4 0.2 3 4.7 3.2 1.3 0.2 4 4.6 3.1 1.5 0.2 5 5.0 3.6 1.4 0.2 6 5.4 3.9 1.7 0.4
good.times <- Sys.Date() %>% as.POSIXct %>% seq(by = "15 mins", length.out = 100) %>% data.frame(timestamp = .) good.times$quarter <- good.times %>% use_series(timestamp) %>% format("%M") %>% as.numeric %>% divide_by_int(15) %>% add(1)