[R] how to test if a vector contain a value?
Hi all, How to convert following simple python script to R if x in a_list: print x OR simply, how to test if a vector contain a value? Thank you in advance, Hyunchul [[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.
Re: [R] how to test if a vector contain a value?
Hi Hyunchul, See ?match -Ista On Mon, Aug 16, 2010 at 1:06 PM, Hyunchul Kim hyunchul.kim@gmail.com wrote: Hi all, How to convert following simple python script to R if x in a_list: print x OR simply, how to test if a vector contain a value? Thank you in advance, Hyunchul [[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. -- Ista Zahn Graduate student University of Rochester Department of Clinical and Social Psychology http://yourpsyche.org __ 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.
Re: [R] how to test if a vector contain a value?
Try this: is.element(2, c(1, 2, 4)) On Mon, Aug 16, 2010 at 10:06 AM, Hyunchul Kim hyunchul.kim@gmail.comwrote: Hi all, How to convert following simple python script to R if x in a_list: print x OR simply, how to test if a vector contain a value? Thank you in advance, Hyunchul [[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. -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40 S 49° 16' 22 O [[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.
Re: [R] how to test if a vector contain a value?
mylist = c(1,2,3)
if (any(mylist == 3)) { print(3) }
[1] 3
On 08/16/2010 03:06 PM, Hyunchul Kim wrote:
Hi all,
How to convert following simple python script to R
if x in a_list:
print x
OR
simply, how to test if a vector contain a value?
Thank you in advance,
Hyunchul
[[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.
__
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.
Re: [R] how to test if a vector contain a value?
On Mon, Aug 16, 2010 at 2:06 PM, Hyunchul Kim
hyunchul.kim@gmail.com wrote:
Hi all,
How to convert following simple python script to R
if x in a_list:
print x
OR
simply, how to test if a vector contain a value?
if(any(a_list == x)){
print(x)
}
Or use %in%:
a_list=c(1,2,3,4)
b_list=c(1,2,4)
3 %in% a_list
[1] TRUE
3 %in% b_list
[1] FALSE
Or use match if you want to know where in a_list it is.
Any simple beginners guide to R should tell you about these.
Barry
__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] how to test if a vector contain a value?
You have a lot of different way a-c(1,2,3,NA,3,4,3) is.na(a) [1] FALSE FALSE FALSE TRUE FALSE FALSE FALSE a==2 [1] FALSE TRUE FALSENA FALSE FALSE FALSE Look at here: http://cran.r-project.org/doc/manuals/R-intro.html -- View this message in context: http://r.789695.n4.nabble.com/how-to-test-if-a-vector-contain-a-value-tp2326843p2326868.html Sent from the R help mailing list archive at Nabble.com. __ 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.
