README.md

In reinholdsson/dt.aggr: What the package does (short line)

dt.aggr

r data.table helper functions

library(data.table)
library(lubridate)
d <- seq(as.Date("2013-01-01"), as.Date("2014-12-31"), by = 1)
l <- length(d)
x <- data.table(d = d, b = sample(LETTERS[1:3], l, replace = T), c = sample(LETTERS[1:3], l, replace = T), value = sample(1:100, l, replace = T))
calculate_xtd(x, 'd', fun = sum(value), by = c('b'), measures = c('d1', 'ytd'))

reinholdsson/dt.aggr documentation built on May 27, 2019, 4:54 a.m.