python - Group by business day of month -

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data generated on business days.

df['day_of_month'] = df.index.day date........................................                                   day_of_month 2014-11-26   1049.25     1054.75        26 2014-11-28   1041.00     1051.50        28 2014-12-01   1010.75     1022.50        1

can group calendar day of month,'day_of_month', approx 30 per month

goal group business day of month, approx 22/month

is there df.index.buiness_day_of_month type function?

tried importing bday, special calendars , like, without success. thank help.

may helps

dat1$grp <- with(dat1, ave(seq_along(date1),             format(date1, '%m'), fun=seq_along)) aggregate(val~grp, dat1, fun=sum)

data

date <- seq(as.date('2014-11-01'), length.out=80, by='1 day') library(timedate) date1 <- date[isbizday(as.timedate(date))] day_of_month <-  as.numeric(format(date1, '%d')) set.seed(24) dat1 <- data.frame(date1, day_of_month, val=rnorm(54))

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