[R] saving rounded numbers as a new variable in a dataframe

[Petr Pikal]

Hi



On 19 Jun 2006 at 8:20, Neuro LeSuperHéros wrote:

From:           	Neuro LeSuperHéros <neuro3000 at hotmail.com>
To:             	bgreen at dyson.brisnet.org.au, r-help at stat.math.ethz.ch
Date sent:      	Mon, 19 Jun 2006 08:20:16 -0400
Subject:        	Re: [R] saving rounded numbers as a new variable in a dataframe

> Hi
> 
> 1-Please read this: R Data Import/Export 
> cran.r-project.org/doc/manuals/R-data.pdf
> 2-This is the code:
> 
> rounded <-round(numurder, 0)
> write.csv(rounded,"c:/ngri.csv")

this will erase former ngri.csv and write a new ngri.csv containing 
only rounded variable!!!

Let ngri is data frame from which you have murder and other variables

then

write.csv(data.frame(nmurder=rounded, ngri),"c:/ngri.csv")

shall be better choice.

HTH
Petr



> 
> Neuro
> 
> 
> >From: Bob Green <bgreen at dyson.brisnet.org.au>
> >To: r-help at stat.math.ethz.ch
> >Subject: [R] saving rounded numbers as a new variable in a dataframe
> >Date: Mon, 19 Jun 2006 22:11:57 +1000
> >
> >
> >
> >A basic question, but one that eludes me. I have created a new
> >variable $numurder, which I have rounded off. I want to save the
> >rounded off version of this variable to an existing datafile called
> >'ngri.csv' .
> >
> >   numurder   <-c((murder*no.of.cases)/100)
> >[[1]]
> >   [1]  48.952 112.073 182.160 974.610 122.140 663.432 150.856 
> >   18.988
> >137.925 198.045  68.930 203.148  30.056 100.955
> >
> >
> >round(numurder, 0)
> >   [1]  49 112 182 975 122 663 151  19 138 198  69 203  30 101
> >
> >
> >Advice regarding how to do this is appreciated,
> >
> >Bob
> >
> >______________________________________________
> >R-help at stat.math.ethz.ch mailing list
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> 
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Petr Pikal
petr.pikal at precheza.cz