Displaying 2 results from an estimated 2 matches for "yearweek".
2010 May 17
1
Isn't aggreate.zoo supposed to work with POSIXct (zoo/TTR/xts issue)?
library(xts)
library(TTR)
ndx = getYahooData("^NDX")
aa = ndx$Close
bb = aggregate(aa, as.yearweek, tail, 1)
The last operation takes forever, and then the bb dates are messed up. The following produces the desired result:
time(aa) = as.Date(time(aa))
bb = aggregate(aa, as.yearweek, tail, 1)
The index of ndx and aa is of POSIXct (as reported by is(time(ndx))) , which apparently causes problem...
2007 Jul 10
0
Plot dies with memory not mapped (segfault) (PR#9785)
..._TO_DATE(CONCAT(YEAR(FROM_UNIXTIME(dispatch_time)),'-',MONTH(FROM_UNIXTIME(dispatch_time)),'-01'),'%Y-%m-%d');",sep="")
}
} else if(QUERY_DATE=="Week") {
usageAVGQuery<-paste("SELECT
STR_TO_DATE(CONCAT(YEARWEEK(FROM_UNIXTIME(dispatch_time)),' Monday'), '%X%V %W')
AS date, AVG(cpu_seconds_user/total_time) AS time, AVG(num_cpus) AS AVG_CPUs,
AVG(dispatch_time-end_time) AS AVG_job_length FROM
",systems[iter],usageDateClamp," GROUP BY date;",sep="")
usa...