[R] Problems with intersections between two charcter vectors

[Jim Holtman]

the vectors in you first example look like a long character string since I only see quote marks at the beginning and end and notbon the individual objects, but it is hard to tell since it appears to be in HTML.

Sent from my iPad

On Dec 4, 2013, at 1:52, "snow" <7146781 at qq.com> wrote:

> I'm a beginner with R.
> 
> I have two vectors in character format. I tried to get the intersection of these two vectors using intersect����. But there is no result. The process is below:
>> a<-c("CREB2�� ,��ELK1�� ,��ELK4�� ,��MYC�� ,��NR4A1�� ,��FOS�� ,��SRF�� ,��TAU�� ,��STMN1�� ,��CPLA2")> a[1] "CREB2�� ,��ELK1�� ,��ELK4�� ,��MYC�� ,��NR4A1�� ,��FOS�� ,��SRF�� ,��TAU�� ,��STMN1�� ,��CPLA2"> b<-c("CAMK2��,��CPKC��,��CBL��,��STAT5A��,��FAK��,��ABL1��,��JUN��,��ELK1��,��MYC")> b[1] "CAMK2��,��CPKC��,��CBL��,��STAT5A��,��FAK��,��ABL1��,��JUN��,��ELK1��,��MYC"> intersect(a,b)character(0) 
> However when I tried intersect����with another two vectors, it works. The example is like this:
>> c<-c("a", "b", "e", "c", "e", "f")> c[1] "a" "b" "e" "c" "e" "f"> d<-c("a", "g", "f", "b", "e")> d[1] "a" "g" "f" "b" "e"> intersect(c,d)[1] "a" "b" "e" "f" 
> I think something must be wrong in my way with first two vectors(a,b). Could anyone give me a kind help to tell me the reason for that? Thank you very much.
> 
> 
> 
> Hui Xue
>    [[alternative HTML version deleted]]
> 
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