try this one,
`%ni%` <- Negate(`%in%`)
Best,
baptiste
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Just read the help page:
?"%in%
"%w/o%" <- function(x,y) x[!x %in% y] #-- x without y
(1:10) %w/o% c(3,7,12)
--
David.
On Mar 21, 2010, at 5:57 PM, Martin Batholdy wrote:
thanks!
Now I have one more question;
How can I do the reverse?
when %in% is == (for two vectors of different length
Martin Batholdy wrote:
thanks!
Now I have one more question;
How can I do the reverse?
when %in% is == (for two vectors of different lengths); what is the equivalent
to != ?
a %in% b returns a logical vector, so
!a %in% b
returns its negation. See order of precedence in ?Syntax.
thanks!
Now I have one more question;
How can I do the reverse?
when %in% is == (for two vectors of different lengths); what is the equivalent
to != ?
On 21.03.2010, at 22:33, Erik Iverson wrote:
> Martin Batholdy wrote:
>> Hi,
>> I would like to compare a column of data with a vector.
>>
Martin Batholdy wrote:
Hi,
I would like to compare a column of data with a vector.
I have this data.frame for example;
x <- data.frame(A = c(1:5), B = c(1,1,2,2,2))
Now I have a search vector:
search <- c(1,3,5)
when I now try to get all the data-rows which have a 1, a 3, or a 5 in column
Hi,
I would like to compare a column of data with a vector.
I have this data.frame for example;
x <- data.frame(A = c(1:5), B = c(1,1,2,2,2))
Now I have a search vector:
search <- c(1,3,5)
when I now try to get all the data-rows which have a 1, a 3, or a 5 in column A
and a 2 in column B,
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