R help - Jan 2012 - function: as.integer

dear r-helpers,

i created an object named A, which looks like this:

A <- c("4.4","1.9","4.1")

now i needed to get numbers instead of characters and for this i used the
function:

as.integer(A)


which resulted in:


[1] 4 1 4


My question is, why the numbers are rounded or more impotantly if
there is a way to keep the decimal numbers?


Thank you very much for your help in advance!


Marion

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> as.numeric(A)
[1] 4.4 1.9 4.1

Integers are just integers...


On Tuesday 31 January 2012 12:21:48 Marion Wenty wrote:
> dear r-helpers,
> 
> i created an object named A, which looks like this:
> 
> A <- c("4.4","1.9","4.1")
> 
> now i needed to get numbers instead of characters and for this i used the
> function:
> 
> as.integer(A)
> 
> 
> which resulted in:
> 
> 
> [1] 4 1 4
> 
> 
> My question is, why the numbers are rounded or more impotantly if
> there is a way to keep the decimal numbers?
> 
> 
> Thank you very much for your help in advance!
> 
> 
> Marion
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org 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.

They are rounded to integers because you used as.integer(). Perhaps you meant to
use as.double()

Michael

On Jan 31, 2012, at 6:21 AM, Marion Wenty <marion.wenty at gmail.com>
wrote:
> dear r-helpers,
> 
> i created an object named A, which looks like this:
> 
> A <- c("4.4","1.9","4.1")
> 
> now i needed to get numbers instead of characters and for this i used the
> function:
> 
> as.integer(A)
> 
> 
> which resulted in:
> 
> 
> [1] 4 1 4
> 
> 
> My question is, why the numbers are rounded or more impotantly if
> there is a way to keep the decimal numbers?
> 
> 
> Thank you very much for your help in advance!
> 
> 
> Marion
> 
>    [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org 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.

Thank you very much for your help!

I was under the impression that numeric vectors and integer vectors are the
same!

Reading about integers just now I did not understand, what integer vectors
are. However, for my problem, I didn't need them, and used as.numeric
respectively as.double().

Thanks again

Regards,
Marion

2012/1/31 Marion Wenty <marion.wenty@gmail.com>
> dear r-helpers,
>
> i created an object named A, which looks like this:
>
> A <- c("4.4","1.9","4.1")
>
> now i needed to get numbers instead of characters and for this i used the
> function:
>
> as.integer(A)
>
>
> which resulted in:
>
>
> [1] 4 1 4
>
>
> My question is, why the numbers are rounded or more impotantly if there is
a way to keep the decimal numbers?
>
>
> Thank you very much for your help in advance!
>
>
> Marion
>
>
	[[alternative HTML version deleted]]