[R] aggregate dataframe by multiple factors
David Winsemius
dwinsemius at comcast.net
Sun Nov 20 19:44:24 CET 2016
> On Nov 20, 2016, at 5:28 AM, Karim Mezhoud <kmezhoud at gmail.com> wrote:
>
> Sorry for the delay,
> Many Thanks for Mr. David and Mr. Petr
> I thinked to use "sort" function to arrange chronologically value by 'date' (without 'date' is colnames) of each variables (DCE, DP).
>
>
> The solution of David seems to be simple to understand with "unlist" function.
> The solution of Petr seems to be fancy. I did not find document about "I" argument for aggregate function.
>
> How can know which value for which date?
You asked for a functional reshaping that did not have the date. Now you want the date? There was no date in the result you indicated was desired. ....??????
--
David.
>
> I will save the reshaping/ordering dataframe for later use.
> Many Thanks,
> Karim
>
>
> On Fri, Nov 18, 2016 at 11:34 AM, PIKAL Petr <petr.pikal at precheza.cz> wrote:
> Hi
>
> same result can be achieved by
>
> dat.ag<-aggregate(dat[ , c("DCE","DP")], by= list(dat$first.Name, dat$Name, dat$Department) , "I")
>
> Sorting according to the first row seems to be quite tricky. You could probably get closer by using some combination of split and order and arranging back chunks of data
>
> ooo1<-order(split(dat$DCE,interaction(dat$first.Name, dat$Name, dat$Department, drop=T))[[1]])
> data.frame(sapply(split(dat$DCE,interaction(dat$first.Name, dat$Name, dat$Department, drop=T)), rbind))[ooo1,]
> Ancient.Nation.QLH Amish.Wives.TAS Auction.Videos.YME
> 2 0.28 NA NA
> 4 0.28 NA NA
> 1 0.54 0.59 0.57
> 3 0.54 0.59 0.57
>
> however I wonder why the order according to the first row is necessary if all NAs are on correct positions?
>
> Cheers
> Petr
>
>
> > -----Original Message-----
> > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of David
> > Winsemius
> > Sent: Friday, November 18, 2016 9:30 AM
> > To: Karim Mezhoud <kmezhoud at gmail.com>
> > Cc: r-help at r-project.org
> > Subject: Re: [R] aggregate dataframe by multiple factors
> >
> >
> > > On Nov 17, 2016, at 11:27 PM, Karim Mezhoud <kmezhoud at gmail.com>
> > wrote:
> > >
> > > Dear all,
> > >
> > > the dat has missing values NA,
> > >
> > > first.Name Name Department DCE DP date
> > > 5 Auction Videos YME 0.57 0.56 2013-09-30
> > > 18 Amish Wives TAS 0.59 0.56 2013-09-30
> > > 34 Ancient Nation QLH 0.54 0.58 2013-09-30
> > > 53 Auction Videos YME NA NA 2013-12-28
> > > 66 Amish Wives TAS NA NA 2013-12-28
> > > 82 Ancient Nation QLH 0.28 0.29 2013-12-28
> > > 102 Auction Videos YME 0.57 0.56 2014-03-30
> > > 115 Amish Wives TAS 0.59 0.56 2014-03-30
> > > 131 Ancient Nation QLH 0.54 0.58 2014-03-30
> > > 150 Auction Videos YME NA NA 2014-06-28
> > > 163 Amish Wives TAS NA NA 2014-06-28
> > > 179 Ancient Nation QLH 0.28 0.29 2014-06-28
> > >
> > >
> > > agg <- as.data.frame(aggregate(dat[ , c("DCE","DP")], by=
> > > list(dat$first.Name, dat$Name, dat$Department) , "sort"))
> >
> > The closest I could get on a few attempts was:
> >
> > (agg <- as.data.frame(aggregate(dat[ , c("DCE","DP")], by=
> > list(dat$first.Name, dat$Name, dat$Department) , function(d) { unlist(d)}))
> > )
> >
> > Group.1 Group.2 Group.3 DCE.1 DCE.2 DCE.3 DCE.4 DP.1 DP.2 DP.3 DP.4
> > 1 Ancient Nation QLH 0.54 0.28 0.54 0.28 0.58 0.29 0.58 0.29
> > 2 Amish Wives TAS 0.59 NA 0.59 NA 0.56 NA 0.56 NA
> > 3 Auction Videos YME 0.57 NA 0.57 NA 0.56 NA 0.56 NA
> >
> > I think the sort operation might be somewhat ambiguous in this instance. I
> > tried:
> >
> > (agg <- as.data.frame(aggregate(dat[ , c("DCE","DP")], by=
> > list(dat$first.Name, dat$Name, dat$Department) , function(d) {
> > unlist(lapply(d,sort))}))
> > )
> >
> > With no success, not even a sorted result.
> >
> > --
> > David.
> > >
> > >
> > > agg has list of value. I would separate value in different columns.
> > >
> > > Group.1 Group.2 Group.3 DCE DP
> > > 1 Ancient Nation QLH 0.28, 0.28, 0.54, 0.54 0.29, 0.29, 0.58, 0.58
> > > 2 Amish Wives TAS 0.59, 0.59 0.56, 0.56
> > > 3 Auction Videos YME 0.57, 0.57 0.56, 0.56
> > >
> > > The goal:
> > >
> > > Group.1 Group.2 Group.3 DCE.1 DCE.2 DCE.3 DCE.4 DP.1 DP.2 DP.3 DP.4
> > > 1 Ancient Nation QLH 0.28 0.28 0.54 0.54 0.29, 0.29,
> > > 0.58, 0.58
> > > 2 Amish Wives TAS NA NA 0.59, 0.59 NA
> > > NA 0.56, 0.56
> > > 3 Auction Videos YME NA NA 0.57, 0.57 NA
> > > NA 0.56, 0.56
> > >
> > >
> > >
> > > dat <- structure(list(first.Name = structure(c(3L, 1L, 2L, 3L, 1L, 2L,
> > > 3L, 1L, 2L, 3L, 1L, 2L), .Label = c("Amish", "Ancient", "Auction",
> > > "Ax", "Bachelorette", "Basketball", "BBQ", "Cake", "Celebrity",
> > > "Chef", "Clean", "Colonial", "Comedy", "Comic", "Crocodile", "Dog",
> > > "Empire", "Extreme", "Farm", "Half Pint", "Hollywood", "House", "Ice
> > > Road", "Jersey", "Justice", "Love", "Mega", "Model", "Modern",
> > > "Mountain", "Mystery", "Myth", "New York", "Paradise", "Pioneer",
> > > "Queer", "Restaurant", "Road", "Royal", "Spouse", "Star", "Storage",
> > > "Survival", "The Great American", "Tool", "Treasure", "Wedding",
> > > "Wife"), class = "factor"), Name = structure(c(43L, 47L, 29L, 43L,
> > > 47L, 29L, 43L, 47L, 29L, 43L, 47L, 29L), .Label = c("Aliens",
> > > "Behavior", "Casino", "Casting Call", "Challenge", "Contest",
> > > "Crashers", "Crew", "Dad", "Dancing", "Date", "Disasters", "Dynasty",
> > > "Family", "Garage", "Greenlight", "Gypsies", "Haul", "Hot Rod",
> > > "Inventor", "Jail", "Job", "Justice", "Marvels", "Master", "Mates",
> > > "Model", "Moms", "Nation", "Ninja", "Patrol", "People", "Pitmasters",
> > > "Queens", "Rescue", "Rivals", "Room", "Rooms", "Rules", "Star",
> > > "Stars", "Superhero", "Videos", "VIP", "Wars", "Wishes", "Wives",
> > > "Wrangler"), class = "factor"), Department = structure(c(8L, 6L, 2L,
> > > 8L, 6L, 2L, 8L, 6L, 2L, 8L, 6L, 2L), .Label = c("HXW", "QLH", "RAR",
> > > "RYC", "SYI", "TAS", "VUV", "YME"), class = "factor"),
> > > DCE = c(0.57, 0.59, 0.54, NA, NA, 0.28, 0.57, 0.59, 0.54,
> > > NA, NA, 0.28), DP = c(0.56, 0.56, 0.58, NA, NA, 0.29, 0.56,
> > > 0.56, 0.58, NA, NA, 0.29), date = structure(c(15978, 15978,
> > > 15978, 16067, 16067, 16067, 16159, 16159, 16159, 16249, 16249,
> > > 16249), class = "Date")), description = "", row.names = c(5L, 18L,
> > > 34L, 53L, 66L, 82L, 102L, 115L, 131L, 150L, 163L, 179L), class =
> > > "data.frame", .Names = c("first.Name", "Name", "Department", "DCE",
> > > "DP", "date"))
> > >
> > > [[alternative HTML version deleted]]
> > >
> > > ______________________________________________
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> > > PLEASE do read the posting guide
> > > http://www.R-project.org/posting-guide.html
> > > and provide commented, minimal, self-contained, reproducible code.
> >
> > David Winsemius
> > Alameda, CA, USA
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-
> > guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
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David Winsemius
Alameda, CA, USA
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