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Benjamin Dickgiesser

2006-Oct-26 17:08 UTC

[R] Header of dataframe

Hi
I am fairly new to R and I would appreciate some help to hopefully a
trivial problem.

I created a function:

summary.aggregate <- function(y, ...)
{
	temp.mean 	<- aggregate(y, FUN=mean, ...)
	temp.sd  		<- aggregate(y, FUN=sd, ...)
	temp.length <- aggregate(y, FUN=length, ...)
	temp <- data.frame(cbind(mean=temp.mean$x,stdev=temp.sd$x,n=temp.length$x))
}

this outputs e.g.:

      mean    stdev  n
1 645.6125 65.94129 60
2 655.2121 70.64094 60
3 633.3161 80.48620 60
4 650.3897 77.59191 60
5 630.4955 84.98888 60
6 656.2608 66.16100 60
7 666.1775 74.39796 60
8 663.1543 71.10769 60

Is there an easy way to add a column name to the first column?

Thank you,
Benjamin

Mihai Nica

2006-Oct-26 20:52 UTC

head link

[R] Header of dataframe

names(temp)[1]="a"

see: ?names

did you really created that function :-)?
 
Mihai Nica
170 East Griffith St. G5
Jackson, MS 39201
601-914-0361

----- Original Message ----
From: Benjamin Dickgiesser <dickgiesser@gmail.com>
To: r-help@stat.math.ethz.ch
Sent: Thursday, October 26, 2006 12:08:08 PM
Subject: [R] Header of dataframe

Hi
I am fairly new to R and I would appreciate some help to hopefully a
trivial problem.

I created a function:

summary.aggregate <- function(y, ...)
{
    temp.mean     <- aggregate(y, FUN=mean, ...)
    temp.sd          <- aggregate(y, FUN=sd, ...)
    temp.length <- aggregate(y, FUN=length, ...)
    temp <-
data.frame(cbind(mean=temp.mean$x,stdev=temp.sd$x,n=temp.length$x))
}

this outputs e.g.:

      mean    stdev  n
1 645.6125 65.94129 60
2 655.2121 70.64094 60
3 633.3161 80.48620 60
4 650.3897 77.59191 60
5 630.4955 84.98888 60
6 656.2608 66.16100 60
7 666.1775 74.39796 60
8 663.1543 71.10769 60

Is there an easy way to add a column name to the first column?

Thank you,
Benjamin

______________________________________________
R-help@stat.math.ethz.ch mailing list
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.







	[[alternative HTML version deleted]]

Benjamin Dickgiesser

2006-Oct-26 21:35 UTC

head link

[R] Header of dataframe

Thx for the help but again, this is not what I am looking for. I need
the  "a" to be over the first column e.g.

a    mean    stdev      n
1 645.6125 65.94129 60
2 655.2121 70.64094 60
3 633.3161 80.48620 60
4 650.3897 77.59191 60
5 630.4955 84.98888 60
6 656.2608 66.16100 60
7 666.1775 74.39796 60
8 663.1543 71.10769 60



On 10/26/06, Mihai Nica <mihainica at yahoo.com>
wrote:>
> names(temp)[1]="a"
>
> see: ?names
>
> did you really created that function :-)?
>  Mihai Nica
> 170 East Griffith St. G5
> Jackson, MS 39201
> 601-914-0361
>
>
> ----- Original Message ----
> From: Benjamin Dickgiesser <dickgiesser at gmail.com>
> To: r-help at stat.math.ethz.ch
> Sent: Thursday, October 26, 2006 12:08:08 PM
> Subject: [R] Header of dataframe
>
> Hi
> I am fairly new to R and I would appreciate some help to hopefully a
> trivial problem.
>
> I created a function:
>
> summary.aggregate <- function(y, ...)
> {
>     temp.mean     <- aggregate(y, FUN=mean, ...)
>     temp.sd          <- aggregate(y, FUN=sd, ...)
>     temp.length <- aggregate(y, FUN=length, ...)
>     temp <-
> data.frame(cbind(mean=temp.mean$x,stdev=temp.sd$x,n=temp.length$x))
> }
>
> this outputs e.g.:
>
>       mean    stdev  n
> 1 645.6125 65.94129 60
> 2 655.2121 70.64094 60
> 3 633.3161 80.48620 60
> 4 650.3897 77.59191 60
> 5 630.4955 84.98888 60
> 6 656.2608 66.16100 60
> 7 666.1775 74.39796 60
> 8 663.1543 71.10769 60
>
> Is there an easy way to add a column name to the first column?
>
> Thank you,
> Benjamin
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> 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.
>
>
>

Mihai Nica

2006-Oct-26 22:31 UTC

head link

[R] Header of dataframe

Oh, I can see now what you mean. That's beyond me, but... why :-)?
 
Mihai Nica
170 East Griffith St. G5
Jackson, MS 39201
601-914-0361

----- Original Message ----
From: Benjamin Dickgiesser <dickgiesser@gmail.com>
To: r-help@stat.math.ethz.ch
Sent: Thursday, October 26, 2006 4:35:20 PM
Subject: Re: [R] Header of dataframe

Thx for the help but again, this is not what I am looking for. I need
the  "a" to be over the first column e.g.

a    mean    stdev      n
1 645.6125 65.94129 60
2 655.2121 70.64094 60
3 633.3161 80.48620 60
4 650.3897 77.59191 60
5 630.4955 84.98888 60
6 656.2608 66.16100 60
7 666.1775 74.39796 60
8 663.1543 71.10769 60



On 10/26/06, Mihai Nica <mihainica@yahoo.com>
wrote:>
> names(temp)[1]="a"
>
> see: ?names
>
> did you really created that function :-)?
>  Mihai Nica
> 170 East Griffith St. G5
> Jackson, MS 39201
> 601-914-0361
>
>
> ----- Original Message ----
> From: Benjamin Dickgiesser <dickgiesser@gmail.com>
> To: r-help@stat.math.ethz.ch
> Sent: Thursday, October 26, 2006 12:08:08 PM
> Subject: [R] Header of dataframe
>
> Hi
> I am fairly new to R and I would appreciate some help to hopefully a
> trivial problem.
>
> I created a function:
>
> summary.aggregate <- function(y, ...)
> {
>     temp.mean     <- aggregate(y, FUN=mean, ...)
>     temp.sd          <- aggregate(y, FUN=sd, ...)
>     temp.length <- aggregate(y, FUN=length, ...)
>     temp <-
> data.frame(cbind(mean=temp.mean$x,stdev=temp.sd$x,n=temp.length$x))
> }
>
> this outputs e.g.:
>
>       mean    stdev  n
> 1 645.6125 65.94129 60
> 2 655.2121 70.64094 60
> 3 633.3161 80.48620 60
> 4 650.3897 77.59191 60
> 5 630.4955 84.98888 60
> 6 656.2608 66.16100 60
> 7 666.1775 74.39796 60
> 8 663.1543 71.10769 60
>
> Is there an easy way to add a column name to the first column?
>
> Thank you,
> Benjamin
>
> ______________________________________________
> R-help@stat.math.ethz.ch mailing list
> 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.
>
>
>
______________________________________________
R-help@stat.math.ethz.ch mailing list
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.







	[[alternative HTML version deleted]]

Gregor Gorjanc

2006-Oct-27 05:08 UTC

head link

[R] Header of dataframe

Benjamin Dickgiesser <dickgiesser <at> gmail.com> writes:
...> Is there an easy way to add a column name to the first column?
What about

summary.aggregate <- function(y, ...)
{
  temp.mean <- aggregate(y, FUN=mean, ...)
  temp.sd <- aggregate(y, FUN=sd, ...)
  temp.length <- aggregate(y, FUN=length, ...)
  temp <- data.frame(cbind(col=names(y), mean=temp.mean$x, 
                           stdev=temp.sd$x,n=temp.length$x))
}

or 

summary.aggregate <- function(y, ...)
{
  temp.mean <- aggregate(y, FUN=mean, ...)
  temp.sd <- aggregate(y, FUN=sd, ...)
  temp.length <- aggregate(y, FUN=length, ...)
  temp <- data.frame(cbind(mean=temp.mean$x, 
                           stdev=temp.sd$x,n=temp.length$x))
  rownames(temp) <- names(y)
}

Gregor

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