38
jason@portlandoregon.gov
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Alaios
Sent: Wednesday, March 27, 2013 9:05 AM
To: PIKAL Petr; R help
Subject: Re: [R] Averaging Out many rows from a column AND funtion to string
We
27, 2013 5:05 PM
To: PIKAL Petr; R help
Subject: Re: [R] Averaging Out many rows from a column AND funtion to string
Well my true matrix is
of
num [1:153899, 1:3415]
that I want to convert to something like
num [1:1000, 1:3415] (keeping column number the same).
I only give subsets here to
: PIKAL Petr
Sent: Wednesday, March 27, 2013 4:45 PM
Subject: RE: [R] Averaging Out many rows from a column AND funtion to string
Hi
Â
> system.time({
+ keep<-matrix(data=rnorm(900,80,20),nrow=30,ncol=30)
+ ShrinkTo<-500
+ idx<-cut(1:nrow(keep), ShrinkTo)
+ keep.ag<-aggre
ds
Petr
From: Alaios [mailto:ala...@yahoo.com]
Sent: Wednesday, March 27, 2013 4:12 PM
To: PIKAL Petr; R help
Subject: Re: [R] Averaging Out many rows from a column AND funtion to string
I have fixed it like that:
keep<-matrix(data=rnorm(900,80,20),nrow=30,ncol=30)
ShrinkTo<-500
idx<-cut(1
to
convert it to something like lapply?
Regards
Alex
From: PIKAL Petr
Sent: Wednesday, March 27, 2013 4:02 PM
Subject: RE: [R] Averaging Out many rows from a column AND funtion to string
Hi
Â
> str(as.matrix(keep.ag[,-1]) ) Â # does look like numer
st column from conversion
And please can you explain how mean(rnorm(whatever)) shall be integer?
Regards
Petr
From: Alaios [mailto:ala...@yahoo.com]
Sent: Wednesday, March 27, 2013 3:01 PM
To: PIKAL Petr; R help
Subject: Re: [R] Averaging Out many rows from a column AND funtion to string
see
see inline
From: PIKAL Petr
Sent: Wednesday, March 27, 2013 1:50 PM
Subject: RE: [R] Averaging Out many rows from a column AND funtion to string
Hi
Â
Sent: Wednesday, March 27, 2013 11:46 AM
To: PIKAL Petr; R help
Subject: Re: [R] Averaging Out many
Hi
From: Alaios [mailto:ala...@yahoo.com]
Sent: Wednesday, March 27, 2013 11:46 AM
To: PIKAL Petr; R help
Subject: Re: [R] Averaging Out many rows from a column AND funtion to string
see inline
From: PIKAL Petr mailto:petr.pi...@precheza.cz>>
To:
see inline
From: PIKAL Petr
Sent: Wednesday, March 27, 2013 11:24 AM
Subject: RE: [R] Averaging Out many rows from a column AND funtion to string
Hi
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> pr
Hi
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of Alaios
> Sent: Wednesday, March 27, 2013 9:13 AM
> To: R help
> Subject: [R] Averaging Out many rows from a column AND funtion to
> string
>
> D
Dear all,
1) I have a very large matrix of
str(keep)
num [1:153899, 1:3415] -98.6 -95.8 -96.4 -95.8 -98 ...
that I would like to reduce its size to something like
str(keep)
num [1:1000, 1:3415] -98.6 -95.8 -96.4 -95.8 -98 ...
or anything similar in size as this is a matrix that needs plot
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