R help - May 2013 - 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

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
> 
> ______________________________________________
> 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.
____________________________________________________________
FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your
desktop!