search for: dstday

...62 Inbound [...] # startDateTime and stopDateTime is user entered Start <- as.numeric(as.POSIXct(startDateTime)) End <- as.numeric(as.POSIXct(stopDateTime)) Period<-as.numeric(seq.POSIXt(as.POSIXct(Start,origin="1970-1-1"), as.POSIXct(End,origin="1970-1-1"), by="DSTday")) Labels<-as.Date(seq.POSIXt(as.POSIXct(Start,origin="1970-1-1"), as.POSIXct(End,origin="1970-1-1"), by="DSTday")) dt <- qplot(as.numeric(utildf$Date_and_Time),Utilization,data=utildf,colour=Direction,geom="segment") dt + scale_x_continuous(breaks...

I am still experiencing problems with seq.POSIXt() missing off the last day of the series: > seq(as.POSIXct("2004-03-25"),as.POSIXct("2004-03-31"),by="DSTdays") [1] "2004-03-25 GMT Standard Time" "2004-03-26 GMT Standard Time" "2004-03-27 GMT Standard Time" [4] "2004-03-28 GMT Standard Time" "2004-03-29 GMT Daylight Time" "2004-03-30 GMT Daylight Time" > R.version _...

...s: a vector of cut points _or_ number giving the number of | intervals which 'x' is to be cut into _or_ an interval | specification, one of '"sec"', '"min"', '"hour"', '"day"', | '"DSTday"', '"week"', '"month"' or '"year"', optionally | preceded by an integer and a space, or followed by '"s"'. | For '"Date"' objects only '"day"', '"week&q...

I recently called plot(x,y) where x was an array of POSIXct timestamps, and was pleasantly surprised that it produced a nice plot right out of the box: z <- as.POSIXct(c("2006-10-26 08:00:00 EDT","2007-10-25 12:00:00 EDT")) x <- seq(z[1],z[2],len=100) y <- 1:100 plot(x,y,type="l") The X axis had nice labels, one tick mark every other month. (Plotting on

...code". > x <- as.POSIXct("1968-02-27") # tz="AEST" > x.gmt <- as.POSIXct("1968-02-27", tz="GMT") > data.frame( GMT=seq(x.gmt, by="day", length=8), byday=seq(x, by="day", length=8), byDST=seq(x, by="DSTday", length=8)) GMT byday byDST 1 1968-02-27 1968-02-27 1968-02-27 2 1968-02-28 1968-02-28 1968-02-28 3 1968-02-29 1968-03-01 1968-03-02 4 1968-03-01 1968-03-02 1968-03-02 5 1968-03-02 1968-03-02 1968-03-02 6 1968-03-03 1968-03-03 1968-03-03 7 1968-03-04 1968-03-04 1968-03-04 8...

I am trying to extract only the winters (defined to be 01-Dec through 28-Feb) of daily data from 1948-2002. There are 90 days in each winter season. I wrote the following code to gather the winter dates into a single vector: DJF <- NULL for(year in 1949:1999) { temp.begin <- strptime(paste("01/12", year-1, sep="/"), "%d/%m/%Y") temp.end <-

...http://pastie.org/751640.txt") steps <- list("10 secs", "1 min", "5 mins", "10 mins", "15 mins", "30 mins", "1 hour", "3 hours", "6 hours", "12 hours", "1 DSTday", "1 week", "2 weeks", "1 month", "3 months", "6 months", "1 year", "2 years", "5 years", "10 years", "20 years", "50 years", "100 years") names(st...

Hello all, After beating my head against the wall for a few hours, I give up. I have two problems. 1. If I use seq() to generate a POSIXct series that crosses a daylight savings to stardard time change I get two values for the first day of change. The time change is Nov 6,2011. The value for Nov 7 turns into 23:00 on Nov 6, thus two values for Nov 6. (see below) So I put a time value (noon)

Hi R-devel / R-core In the new pretty() methods for Date and POSIXct https://svn.r-project.org/R/trunk/src/library/grDevices/R/prettyDate.R there is currently a "pretty" time step listed as "15 DSTdays"... but this actually doesn't line up well with months. Much better to implement directly what this is trying to do: i.e. to have a "halfmonth" time step. This is just the union of two "monthly" sequences, one on the 1st of each month and another on the 15th of each m...

...scratch my head just yesterday: When I create a sequence of days that happens to start before and ends in daylight savings time, I seem to lose a day: > seq(from = strptime("20030329", format="%Y%m%d"), to= strptime("20030402", format="%Y%m%d"), by="DSTday") [1] "2003-03-29 Westeurop?ische Normalzeit" "2003-03-30 Westeurop?ische Normalzeit" [3] "2003-03-31 Westeurop?ische Sommerzeit" "2003-04-01 Westeurop?ische Sommerzeit" > seq(from = strptime("20030329", format="%Y%m%d"), to= strpt...

...ration of S3 methods in namespaces were broken if the S3 generic was converted into an S4 generic by setting an S4 method. o Title and copyright holder of the reference manual are now in sync with the citation() command. o The validation code for POSIXlt dates and hence seq(, by="DSTdays") now works for large mday values (not just those in -1000...1000). (PR#6212) o The print() method for data frames now copes with data frames containing arrays (other than matrices). o texi2dvi() and buildVignettes() use clean=FALSE as default because the option is not supported...

...ration of S3 methods in namespaces were broken if the S3 generic was converted into an S4 generic by setting an S4 method. o Title and copyright holder of the reference manual are now in sync with the citation() command. o The validation code for POSIXlt dates and hence seq(, by="DSTdays") now works for large mday values (not just those in -1000...1000). (PR#6212) o The print() method for data frames now copes with data frames containing arrays (other than matrices). o texi2dvi() and buildVignettes() use clean=FALSE as default because the option is not supported...

...ows methods when there are multiple methods with the same signature for the same generic (still not fully supported, but at least the user can see them). * sys.on.exit() is now always evaluated in the right frame. (From Lionel Henry.) * seq.POSIXt(*, by = "<n> DSTdays") now should work correctly in all cases and is faster. (PR#17342) * .C() when returning a logical vector now always maps values other than FALSE and NA to TRUE (as documented). * Subassignment with zero length vectors now coerces as documented (PR#17344). F...

...ows methods when there are multiple methods with the same signature for the same generic (still not fully supported, but at least the user can see them). * sys.on.exit() is now always evaluated in the right frame. (From Lionel Henry.) * seq.POSIXt(*, by = "<n> DSTdays") now should work correctly in all cases and is faster. (PR#17342) * .C() when returning a logical vector now always maps values other than FALSE and NA to TRUE (as documented). * Subassignment with zero length vectors now coerces as documented (PR#17344). F...

...reorder()ed dendrograms now plot properly. o rmultinom(1,100, c(3, 4, 2, 0,0))[3] was NA. (PR#4431) o sapply() for matrix result does not return list(NULL,NULL) dimnames anymore. o scan() now interprets quoting in fields to be skipped. (PR#4128) o seq.POSIXt(from, to, by="DSTday") was failing or calculating the length incorrectly. o sort() and unique.default() were failing on 0-level factors. o step() adds a fuzz for reduction in AIC for 0-df terms. (PR#3491) o str(x) gives better output when x is of mode "(". Its "dendrogram" me...

...reorder()ed dendrograms now plot properly. o rmultinom(1,100, c(3, 4, 2, 0,0))[3] was NA. (PR#4431) o sapply() for matrix result does not return list(NULL,NULL) dimnames anymore. o scan() now interprets quoting in fields to be skipped. (PR#4128) o seq.POSIXt(from, to, by="DSTday") was failing or calculating the length incorrectly. o sort() and unique.default() were failing on 0-level factors. o step() adds a fuzz for reduction in AIC for 0-df terms. (PR#3491) o str(x) gives better output when x is of mode "(". Its "dendrogram" me...