[R] Something Very Easy

[John Kane]

Using arun, data set, dat1
Is this type of thing what you want?

dat2  <-  subset(dat1, dat1$Play != "B" & dat1$Offense == "Y")
  with(dat2,table(Play, Offense))

John Kane
Kingston ON Canada


> -----Original Message-----
> From: smartpink111 at yahoo.com
> Sent: Tue, 21 May 2013 18:57:56 -0700 (PDT)
> To: r-help at r-project.org
> Subject: Re: [R] Something Very Easy
> 
> HI,
> I am not sure about what you expect as output.
> 
> dat1<- read.table(text="
> Offense Play
> Y        A
> N        B
> Y        A
> Y        C
> N        B
> N        C
> ",sep="",header=TRUE,stringsAsFactors=FALSE)
> 
>  with(dat1,tapply(Play,list(Offense),table))
> #$N
> #
> #B C
> #2 1
> #
> #$Y
> #
> #A C
> #2 1
> 
> #or
> with(dat1,tapply(factor(Play),list(Offense),table))
> #$N
> #
> #A B C
> #0 2 1
> #
> #$Y
> #
> #A B C
> #2 0 1
> 
> 
> A.K.
> 
> >I have lines of data that look like this:
>> 
> 
> >Offense Play
> >Y        A
> >N        B
> >Y        A
> >Y        C
> >N        B
> >N        C >
> >with a bunch of other variables.
>> 
> >I just want to get a table like
> >table(Play[Offense=="Y"]) >but one that would return, for the data
> above:
> >A 2
> >C 1
>> 
> >Instead of what I get now, from
> >table(Play[Offense=="Y"]): >
> >A 2
> >B 2
> >C 2
> 
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> and provide commented, minimal, self-contained, reproducible code.

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