How to copy and paste a row at the end of each group of a table?

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How to copy and paste a row at the end of each group of a table?

Kristi Glover
Hi R Users,

I have a big table with many classes, I need to copy a fist row of each class and put at the end of each class.

I split the table but I wonder of copying and putting at the end of the class. Here is an example. I was trying to get the table from "dat" to "dat1". In "dat", there is a column with "day", has only 12 rows for each class. but I want to copy first row of each class and put on the bottom of the class (see table: "dat1"), the value of the column of "day" need to be "361" but the value of temp should be same as of row 1.


Thanks for your suggestions in advance.


Thanks,

dat<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91, 121,
151, 181, 211, 241, 271, 301, 331, 1, 31, 61, 91, 121, 151, 181,
211, 241, 271, 301, 331), temp = c(8.3, 10.3, 9.4, 6.1, 3, 1.3,
1, 0.8, 1, 1.4, 2.7, 5.1, 9, 11.2, 9.6, 5.7, 2, 0.8, 0.6, 0.4,
0.4, 0.6, 1.5, 4.5)), .Names = c("site", "day", "temp"), row.names = c(NA,
-24L), class = "data.frame")

dat1<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91,
121, 151, 181, 211, 241, 271, 301, 331, 361, 1, 31, 61, 91, 121,
151, 181, 211, 241, 271, 301, 331, 361), temp = c(8.3, 10.3,
9.4, 6.1, 3, 1.3, 1, 0.8, 1, 1.4, 2.7, 5.1, 8.3, 9, 11.2, 9.6,
5.7, 2, 0.8, 0.6, 0.4, 0.4, 0.6, 1.5, 4.5, 9)), .Names = c("site",
"day", "temp"), row.names = c(NA, -26L), class = "data.frame")



        [[alternative HTML version deleted]]

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Re: How to copy and paste a row at the end of each group of a table?

jholtman
try this:

> dat<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91, 121,
+ 151, 181, 211, 241, 271, 301, 331, 1, 31, 61, 91, 121, 151, 181,
+ 211, 241, 271, 301, 331), temp = c(8.3, 10.3, 9.4, 6.1, 3, 1.3,
+ 1, 0.8, 1, 1.4, 2.7, 5.1, 9, 11.2, 9.6, 5.7, 2, 0.8, 0.6, 0.4,
+ 0.4, 0.6, 1.5, 4.5)), .Names = c("site", "day", "temp"), row.names = c(NA,
+ -24L), class = "data.frame")
>
> # split the data, copy value of first row to end
> dat2 <- do.call(rbind, lapply(split(dat, dat$site), function(.site){
+     x <- rbind(.site, .site[1L, ])  # add first row to bottom
+     x$day[nrow(x)] <- 361
+     x  # return x
+ }))
> dat2
      site day temp
1.1      1   1  8.3
1.2      1  31 10.3
1.3      1  61  9.4
1.4      1  91  6.1
1.5      1 121  3.0
1.6      1 151  1.3
1.7      1 181  1.0
1.8      1 211  0.8
1.9      1 241  1.0
1.10     1 271  1.4
1.11     1 301  2.7
1.12     1 331  5.1
1.13     1 361  8.3
2.13     2   1  9.0
2.14     2  31 11.2
2.15     2  61  9.6
2.16     2  91  5.7
2.17     2 121  2.0
2.18     2 151  0.8
2.19     2 181  0.6
2.20     2 211  0.4
2.21     2 241  0.4
2.22     2 271  0.6
2.23     2 301  1.5
2.24     2 331  4.5
2.131    2 361  9.0

Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.


On Mon, Oct 31, 2016 at 8:59 AM, Kristi Glover
<[hidden email]> wrote:

> Hi R Users,
>
> I have a big table with many classes, I need to copy a fist row of each class and put at the end of each class.
>
> I split the table but I wonder of copying and putting at the end of the class. Here is an example. I was trying to get the table from "dat" to "dat1". In "dat", there is a column with "day", has only 12 rows for each class. but I want to copy first row of each class and put on the bottom of the class (see table: "dat1"), the value of the column of "day" need to be "361" but the value of temp should be same as of row 1.
>
>
> Thanks for your suggestions in advance.
>
>
> Thanks,
>
> dat<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
> 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91, 121,
> 151, 181, 211, 241, 271, 301, 331, 1, 31, 61, 91, 121, 151, 181,
> 211, 241, 271, 301, 331), temp = c(8.3, 10.3, 9.4, 6.1, 3, 1.3,
> 1, 0.8, 1, 1.4, 2.7, 5.1, 9, 11.2, 9.6, 5.7, 2, 0.8, 0.6, 0.4,
> 0.4, 0.6, 1.5, 4.5)), .Names = c("site", "day", "temp"), row.names = c(NA,
> -24L), class = "data.frame")
>
> dat1<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
> 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91,
> 121, 151, 181, 211, 241, 271, 301, 331, 361, 1, 31, 61, 91, 121,
> 151, 181, 211, 241, 271, 301, 331, 361), temp = c(8.3, 10.3,
> 9.4, 6.1, 3, 1.3, 1, 0.8, 1, 1.4, 2.7, 5.1, 8.3, 9, 11.2, 9.6,
> 5.7, 2, 0.8, 0.6, 0.4, 0.4, 0.6, 1.5, 4.5, 9)), .Names = c("site",
> "day", "temp"), row.names = c(NA, -26L), class = "data.frame")
>
>
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> [hidden email] 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.

______________________________________________
[hidden email] 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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Re: How to copy and paste a row at the end of each group of a table?

PIKAL Petr
Hi

Another approach is to use function like following

fff<-function(x, ...) {
temp <- x[which(x[,"day"]==1),]
temp$day <- 361
x <- rbind(x, temp)
x[order(x$site, x$day),]
}

fff(dat)

Cheers
Petr

> -----Original Message-----
> From: R-help [mailto:[hidden email]] On Behalf Of jim
> holtman
> Sent: Monday, October 31, 2016 2:10 PM
> To: Kristi Glover <[hidden email]>
> Cc: [hidden email]
> Subject: Re: [R] How to copy and paste a row at the end of each group of a
> table?
>
> try this:
>
> > dat<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
> + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91, 121,
> + 151, 181, 211, 241, 271, 301, 331, 1, 31, 61, 91, 121, 151, 181,
> + 211, 241, 271, 301, 331), temp = c(8.3, 10.3, 9.4, 6.1, 3, 1.3,
> + 1, 0.8, 1, 1.4, 2.7, 5.1, 9, 11.2, 9.6, 5.7, 2, 0.8, 0.6, 0.4,
> + 0.4, 0.6, 1.5, 4.5)), .Names = c("site", "day", "temp"), row.names = c(NA,
> + -24L), class = "data.frame")
> >
> > # split the data, copy value of first row to end
> > dat2 <- do.call(rbind, lapply(split(dat, dat$site), function(.site){
> +     x <- rbind(.site, .site[1L, ])  # add first row to bottom
> +     x$day[nrow(x)] <- 361
> +     x  # return x
> + }))
> > dat2
>       site day temp
> 1.1      1   1  8.3
> 1.2      1  31 10.3
> 1.3      1  61  9.4
> 1.4      1  91  6.1
> 1.5      1 121  3.0
> 1.6      1 151  1.3
> 1.7      1 181  1.0
> 1.8      1 211  0.8
> 1.9      1 241  1.0
> 1.10     1 271  1.4
> 1.11     1 301  2.7
> 1.12     1 331  5.1
> 1.13     1 361  8.3
> 2.13     2   1  9.0
> 2.14     2  31 11.2
> 2.15     2  61  9.6
> 2.16     2  91  5.7
> 2.17     2 121  2.0
> 2.18     2 151  0.8
> 2.19     2 181  0.6
> 2.20     2 211  0.4
> 2.21     2 241  0.4
> 2.22     2 271  0.6
> 2.23     2 301  1.5
> 2.24     2 331  4.5
> 2.131    2 361  9.0
>
> Jim Holtman
> Data Munger Guru
>
> What is the problem that you are trying to solve?
> Tell me what you want to do, not how you want to do it.
>
>
> On Mon, Oct 31, 2016 at 8:59 AM, Kristi Glover
> <[hidden email]> wrote:
> > Hi R Users,
> >
> > I have a big table with many classes, I need to copy a fist row of each class
> and put at the end of each class.
> >
> > I split the table but I wonder of copying and putting at the end of the class.
> Here is an example. I was trying to get the table from "dat" to "dat1". In
> "dat", there is a column with "day", has only 12 rows for each class. but I want
> to copy first row of each class and put on the bottom of the class (see table:
> "dat1"), the value of the column of "day" need to be "361" but the value of
> temp should be same as of row 1.
> >
> >
> > Thanks for your suggestions in advance.
> >
> >
> > Thanks,
> >
> > dat<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
> > 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91, 121,
> > 151, 181, 211, 241, 271, 301, 331, 1, 31, 61, 91, 121, 151, 181,
> > 211, 241, 271, 301, 331), temp = c(8.3, 10.3, 9.4, 6.1, 3, 1.3,
> > 1, 0.8, 1, 1.4, 2.7, 5.1, 9, 11.2, 9.6, 5.7, 2, 0.8, 0.6, 0.4,
> > 0.4, 0.6, 1.5, 4.5)), .Names = c("site", "day", "temp"), row.names = c(NA,
> > -24L), class = "data.frame")
> >
> > dat1<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
> > 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91,
> > 121, 151, 181, 211, 241, 271, 301, 331, 361, 1, 31, 61, 91, 121,
> > 151, 181, 211, 241, 271, 301, 331, 361), temp = c(8.3, 10.3,
> > 9.4, 6.1, 3, 1.3, 1, 0.8, 1, 1.4, 2.7, 5.1, 8.3, 9, 11.2, 9.6,
> > 5.7, 2, 0.8, 0.6, 0.4, 0.4, 0.6, 1.5, 4.5, 9)), .Names = c("site",
> > "day", "temp"), row.names = c(NA, -26L), class = "data.frame")
> >
> >
> >
> >         [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > [hidden email] 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.
>
> ______________________________________________
> [hidden email] 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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[hidden email] mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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Re: How to copy and paste a row at the end of each group of a table?

Kristi Glover
Hi Jim and Pikal,

thank you very much for the help. Both approach works fine. Thank you once again.


KG


________________________________
From: PIKAL Petr <[hidden email]>
Sent: October 31, 2016 7:42 AM
To: Kristi Glover
Cc: [hidden email]
Subject: RE: [R] How to copy and paste a row at the end of each group of a table?

Hi

Another approach is to use function like following

fff<-function(x, ...) {
temp <- x[which(x[,"day"]==1),]
temp$day <- 361
x <- rbind(x, temp)
x[order(x$site, x$day),]
}

fff(dat)

Cheers
Petr

> -----Original Message-----
> From: R-help [mailto:[hidden email]] On Behalf Of jim
> holtman
> Sent: Monday, October 31, 2016 2:10 PM
> To: Kristi Glover <[hidden email]>
> Cc: [hidden email]
> Subject: Re: [R] How to copy and paste a row at the end of each group of a
> table?
>
> try this:
>
> > dat<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
> + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91, 121,
> + 151, 181, 211, 241, 271, 301, 331, 1, 31, 61, 91, 121, 151, 181,
> + 211, 241, 271, 301, 331), temp = c(8.3, 10.3, 9.4, 6.1, 3, 1.3,
> + 1, 0.8, 1, 1.4, 2.7, 5.1, 9, 11.2, 9.6, 5.7, 2, 0.8, 0.6, 0.4,
> + 0.4, 0.6, 1.5, 4.5)), .Names = c("site", "day", "temp"), row.names = c(NA,
> + -24L), class = "data.frame")
> >
> > # split the data, copy value of first row to end
> > dat2 <- do.call(rbind, lapply(split(dat, dat$site), function(.site){
> +     x <- rbind(.site, .site[1L, ])  # add first row to bottom
> +     x$day[nrow(x)] <- 361
> +     x  # return x
> + }))
> > dat2
>       site day temp
> 1.1      1   1  8.3
> 1.2      1  31 10.3
> 1.3      1  61  9.4
> 1.4      1  91  6.1
> 1.5      1 121  3.0
> 1.6      1 151  1.3
> 1.7      1 181  1.0
> 1.8      1 211  0.8
> 1.9      1 241  1.0
> 1.10     1 271  1.4
> 1.11     1 301  2.7
> 1.12     1 331  5.1
> 1.13     1 361  8.3
> 2.13     2   1  9.0
> 2.14     2  31 11.2
> 2.15     2  61  9.6
> 2.16     2  91  5.7
> 2.17     2 121  2.0
> 2.18     2 151  0.8
> 2.19     2 181  0.6
> 2.20     2 211  0.4
> 2.21     2 241  0.4
> 2.22     2 271  0.6
> 2.23     2 301  1.5
> 2.24     2 331  4.5
> 2.131    2 361  9.0
>
> Jim Holtman
> Data Munger Guru
>
> What is the problem that you are trying to solve?
> Tell me what you want to do, not how you want to do it.
>
>
> On Mon, Oct 31, 2016 at 8:59 AM, Kristi Glover
> <[hidden email]> wrote:
> > Hi R Users,
> >
> > I have a big table with many classes, I need to copy a fist row of each class
> and put at the end of each class.
> >
> > I split the table but I wonder of copying and putting at the end of the class.
> Here is an example. I was trying to get the table from "dat" to "dat1". In
> "dat", there is a column with "day", has only 12 rows for each class. but I want
> to copy first row of each class and put on the bottom of the class (see table:
> "dat1"), the value of the column of "day" need to be "361" but the value of
> temp should be same as of row 1.
> >
> >
> > Thanks for your suggestions in advance.
> >
> >
> > Thanks,
> >
> > dat<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
> > 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91, 121,
> > 151, 181, 211, 241, 271, 301, 331, 1, 31, 61, 91, 121, 151, 181,
> > 211, 241, 271, 301, 331), temp = c(8.3, 10.3, 9.4, 6.1, 3, 1.3,
> > 1, 0.8, 1, 1.4, 2.7, 5.1, 9, 11.2, 9.6, 5.7, 2, 0.8, 0.6, 0.4,
> > 0.4, 0.6, 1.5, 4.5)), .Names = c("site", "day", "temp"), row.names = c(NA,
> > -24L), class = "data.frame")
> >
> > dat1<-structure(list(site = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
> > 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), day = c(1, 31, 61, 91,
> > 121, 151, 181, 211, 241, 271, 301, 331, 361, 1, 31, 61, 91, 121,
> > 151, 181, 211, 241, 271, 301, 331, 361), temp = c(8.3, 10.3,
> > 9.4, 6.1, 3, 1.3, 1, 0.8, 1, 1.4, 2.7, 5.1, 8.3, 9, 11.2, 9.6,
> > 5.7, 2, 0.8, 0.6, 0.4, 0.4, 0.6, 1.5, 4.5, 9)), .Names = c("site",
> > "day", "temp"), row.names = c(NA, -26L), class = "data.frame")
> >
> >
> >
> >         [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > [hidden email] 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.
>
> ______________________________________________
> [hidden email] 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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