R 的新手并且学到了很多东西,我喜欢它。
我的销售数据集有产品、bpid、日期。我想计算相同 bpid 之间的业务差异(不包括周六和周日)。
如果产品或 bpid 更改(或引入新的 bpid/产品),我们需要跳过计算。
df <- data.frame(product=c('milk','milk','milk','milk','eggs','eggs','eggs','eggs'),
bpid=c(400,400,500,500,400,400,500,500),
date=c("2016-08-03","2016-08-10","2016-08-04","2016-08-10","2016-08-10","2016-08-16","2016-08-11","2016-08-15"));
df$date <- as.Date(df$date, format = "%Y-%m-%d");
我想要的结果如下所示。 请帮忙....
product bpid date compute-result
milk 400 2016-08-03 0
milk 400 2016-08-10 5
milk 500 2016-08-04 0
milk 500 2016-08-10 5
eggs 400 2016-08-10 0
eggs 400 2016-08-16 4
eggs 500 2016-08-11 0
eggs 500 2016-08-15 2
真实数据代码(在结果列中取零)
df <- data.frame(product=c('Keyt','Keyt','Keyt','Keyt','Keyt','Keyt'),
bpid=c(30057,30057,30057,30058,30058,30058),
date=c("2014-11-21","2015-05-05","2015-05-11","2014-10-16","2014-11-03","2016-03-15"));
df$date <- as.Date(df$date, format = "%Y-%m-%d");
cal <- Calendar(weekdays=c("saturday", "sunday"))
df$`compute-result` <- 0
idx <- seq(1, nrow(df),2)
df$`compute-result`[idx+1] <- bizdays(df$date[idx], df$date[idx+1], cal)
df
最佳答案
例如:
# install.packages("bizdays")
library(bizdays)
cal <- create.calendar(name = "mycal", weekdays=c("saturday", "sunday"))
df$`compute-result` <- 0
idx <- seq(1, nrow(df),2)
df$`compute-result`[idx+1] <- bizdays(df$date[idx], df$date[idx+1], cal)
df
# product bpid date compute-result
# 1 milk 400 2016-08-03 0
# 2 milk 400 2016-08-10 5
# 3 milk 500 2016-08-04 0
# 4 milk 500 2016-08-10 4
# 5 eggs 400 2016-08-10 0
# 6 eggs 400 2016-08-16 4
# 7 eggs 500 2016-08-11 0
# 8 eggs 500 2016-08-15 2
如果你想按
product
和 bpid
分组,你可以试试# install.packages("bizdays")
library(bizdays)
cal <- create.calendar(name="mycal", weekdays=c("saturday", "sunday"))
with(df, ave(as.integer(date), product, bpid, FUN=function(x) {
x <- as.Date(x, origin="1970-01-01")
c(0, bizdays(head(x, -1), tail(x, -1), cal))
})) -> df$result
df
# product bpid date result
# 1 Keyt 30057 2014-11-21 0
# 2 Keyt 30057 2015-05-05 117
# 3 Keyt 30057 2015-05-11 4
# 4 Keyt 30058 2014-10-16 0
# 5 Keyt 30058 2014-11-03 12
# 6 Keyt 30058 2016-03-15 356
请注意,在函数内部将
date
转换为 integer
并返回到 Date
,否则 ave
会引发错误:关于r - 计算两个日期之间的工作日,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/39260329/