Alewife 22 16 0.22535211
#6 230 Sunlight Alewife 23 22 0.30985915
A.K.
- Original Message -
From: Rui Barradas
To: Sally_roman
Cc: r-help@r-project.org
Sent: Thursday, October 25, 2012 11:59 AM
Subject: Re: [R] trying ti use a function in aggregate
Hello,
Try the
o: Sally_roman
Cc: r-help@r-project.org
Sent: Thursday, October 25, 2012 2:45 PM
Subject: Re: [R] trying ti use a function in aggregate
Sally,
It's great that you provided data and code. To make it even more
user-friendly for R-help readers, supply your data as Rcode, using (for
example) t
Hi Jean - Thank you for your help. The code worked great.
- Original Message -
From: "Jean V Adams [via R]"
To: "Sally_roman"
Sent: Thursday, October 25, 2012 2:48:45 PM
Subject: Re: trying ti use a function in aggregate
Sally,
It's great that you provided data and code. To make
___
From: Sally A Roman
To: arun
Sent: Thursday, October 25, 2012 12:44 PM
Subject: Re: [R] trying ti use a function in aggregate
Thank you for your help. Your code does what I need it to, but the output that
I need is
Trip_id, Vessel, CommonName, Length, Percent. When I run your
Sally,
It's great that you provided data and code. To make it even more
user-friendly for R-help readers, supply your data as Rcode, using (for
example) the dput() function.
The reason you were getting all 1s with your code, is that you had told it
to aggregate by trip, LENGTH, and species.
Hi,
May be this helps:
dat1<-read.table(text="
Trip_id Vessel CommonName Length Count
1 230 Sunlight ShadAmerican 19 1
2 230 Sunlight ShadAmerican 20 1
3 230 Sunlight ShadAmerican 21 1
4 230 Sunlight ShadAm
Hello,
Try the following.
(I've changed your function a bit. And named the data.frame 'dat', not
'data', which is an R function.)
myfun <- function (x) ifelse(sum(x) == 0, 0, x/sum(x))
aggregate(Count ~ Trip_id + Length + CommonName, data = dat, myfun)
The output shows that each and every gr
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