R help - Aug 2012 - How can we compare two vectors?

x=c(5, 8, 28, 29, 30)
y=c(5, 8, 28, 29, 31)
How can we compare these two vectors, whether each element is exactly matched
with the elements in the other vector ?
How can we get the non matched elements from both the vectors?
Can anyone help?
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Either == or %in% if you care about order or not. 

Michael

On Aug 8, 2012, at 7:00 AM, Sri krishna Devarayalu Balanagu
<balanagudevarayulu at gvkbio.com> wrote:
> x=c(5, 8, 28, 29, 30)
> y=c(5, 8, 28, 29, 31)
> How can we compare these two vectors, whether each element is exactly
matched with the elements in the other vector ?
> How can we get the non matched elements from both the vectors?
> Can anyone help?
> ________________________________
> Notice: The information contained in this electronic mail message is
intended only for the use of the designated recipient. This message is
privileged and confidential. and the property of GVK BIO or its affiliates and
subsidiaries. If the reader of this message is not the intended recipient or an
agent responsible for delivering it to the intended recipient, you are hereby
notified that you have received this message in error and that any review,
dissemination, distribution, or copying of this message is strictly prohibited.
If you have received this communication in error, please notify us immediately
by telephone +91-40-66929999<tel:%2B91-40-66929999> and destroy any and
all copies of this message in your possession (whether hard copies or
electronically stored copies).
> 
>    [[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.

> x=c(5, 8, 28, 29, 30)
> y=c(5, 8, 28, 29, 31)
> x==y
[1]  TRUE  TRUE  TRUE  TRUE FALSE
> which(x==y)
[1] 1 2 3 4
> which(x!=y)
 [1] 5
> x[x!=y]
[1] 30
> y[x!=y]
[1] 31

RTFM! - just kidding ;)

also, this might not work for floating point numbers, theres a section in the
documentation/faq somewhere about it.

On 08.08.2012, at 14:00, Sri krishna Devarayalu Balanagu wrote:
> x=c(5, 8, 28, 29, 30)
> y=c(5, 8, 28, 29, 31)
> How can we compare these two vectors, whether each element is exactly
matched with the elements in the other vector ?
> How can we get the non matched elements from both the vectors?
> Can anyone help?
> ________________________________
> Notice: The information contained in this electronic mail message is
intended only for the use of the designated recipient. This message is
privileged and confidential. and the property of GVK BIO or its affiliates and
subsidiaries. If the reader of this message is not the intended recipient or an
agent responsible for delivering it to the intended recipient, you are hereby
notified that you have received this message in error and that any review,
dissemination, distribution, or copying of this message is strictly prohibited.
If you have received this communication in error, please notify us immediately
by telephone +91-40-66929999<tel:%2B91-40-66929999> and destroy any and
all copies of this message in your possession (whether hard copies or
electronically stored copies).
> 
> 	[[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.

Hi krishna,

1.How can we compare these two vectors,whether each element is exactly
matched with the elements in the other vector?
x=c(5, 8, 28, 29, 30)
y=c(5, 8, 28, 29, 31)

z<-(x %in% y)
> z
[1]  TRUE  TRUE  TRUE  TRUE FALSE

(OR)

z<-identical(x,y)
> z
[1] FALSE

(OR) to get values that are  matching

z<-x[x %in% y]
> z
[1]  5  8 28 29

2.How can we get the non matched elements from both the vectors?

z<-setdiff(x,y)
> z
[1] 30

i hope this will help

Regards
Ramakanth Reddy Guntuka
---------------------------------------------------------------------------------------
Life Sc. Informatics
Bonn-Aachen International Center for Information Technology
University of Bonn, Germany
Mob: +49-015141366412








On 8 August 2012 14:00, Sri krishna Devarayalu Balanagu <
balanagudevarayulu@gvkbio.com> wrote:
> x=c(5, 8, 28, 29, 30)
> y=c(5, 8, 28, 29, 31)
> How can we compare these two vectors, whether each element is exactly
> matched with the elements in the other vector ?
> How can we get the non matched elements from both the vectors?
> Can anyone help?
> ________________________________
> Notice: The information contained in this electronic mail message is
> intended only for the use of the designated recipient. This message is
> privileged and confidential. and the property of GVK BIO or its affiliates
> and subsidiaries. If the reader of this message is not the intended
> recipient or an agent responsible for delivering it to the intended
> recipient, you are hereby notified that you have received this message in
> error and that any review, dissemination, distribution, or copying of this
> message is strictly prohibited. If you have received this communication in
> error, please notify us immediately by telephone
> +91-40-66929999<tel:%2B91-40-66929999> and destroy any and all copies
of
> this message in your possession (whether hard copies or electronically
> stored copies).
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@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.
>


-- 
Herzlichen Gruß,
Ramakanth Reddy Guntuka
---------------------------------------------------------------------------------------
Life Sc. Informatics Programme
Bonn-Aachen International Center for Information Technology
University of Bonn, Germany
Mob: +49-015141366412

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