[R] how to subtotal by rows

[arun]

#or 

ddply(jd1,.(fid,year),numcolwise(sum,na.rm=TRUE))
 # fid year rice wheat maize
#1   1 1995    5     3     2
#2   1 1996    4     2     6
#3   2 1995    3     8     4
#4   2 1996    7     6     7
A.K.


----- Original Message -----
From: Janesh Devkota <janesh.devkota at gmail.com>
To: shyam basnet <shyamabc2002 at yahoo.com>
Cc: "r-help at R-project.org" <r-help at r-project.org>
Sent: Friday, April 19, 2013 3:30 PM
Subject: Re: [R] how to subtotal by rows

Hello Shyam,

This is one way to do it

jd1 <- read.table(text="
fid      year     rice     wheat      maize
1        1995      5        NA           NA
1        1995      NA        3           NA
1        1995      NA       NA           2
1        1996      4        NA           NA
1        1996      NA        2           NA
1        1996      NA        NA           6
2        1995      3        NA           NA
2        1995      NA        8           NA
2        1995      NA        NA           4
2        1996      7        NA           NA
2        1996      NA        6           NA
2        1996      NA        NA           7
", sep="", header=T)
jd1

library(plyr)

ddply(jd1,.(fid,year),summarise,
rice=sum(rice,na.rm=T),wheat=sum(wheat,na.rm=T),maize=sum(maize,na.rm=T))

Good luck

Janesh


On Fri, Apr 19, 2013 at 10:59 AM, shyam basnet <shyamabc2002 at yahoo.com>wrote:

>
>
> Dear R-users,
>
> I have a dataset as like below, and I want to subtotal the values of
> rice,wheat and maize by year for each fid.
>
> fid      year     rice     wheat      maize
> ------------------------------------------------
> 1        1995      5        NA           NA
> 1        1995      NA        3           NA
> 1        1995      NA       NA           2
> 1        1996      4        NA           NA
> 1        1996      NA        2           NA
> 1        1996      NA        NA           6
> 2        1995      3        NA           NA
> 2        1995      NA        8           NA
> 2        1995      NA        NA           4
> 2        1996      7        NA           NA
> 2        1996      NA        6           NA
> 2        1996      NA        NA
> 7-----------------------------------------------
>
> And, my output should look like below:
>
> fid      year     rice     wheat      maize
> 1        1995      5        3           2
> 1        1996      4        2           6
>
> 2        1995      3        8           4
> 2        1996      7        6           7I am looking for some ideas or
> r-codes on resolving my problem.
> I appreciate your kind help,
>
>
> Thanks a lot,
>
> Sincerely yours,
> Shyam
> Nepal
>         [[alternative HTML version deleted]]
>
>
> ______________________________________________
> 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.
>
>

    [[alternative HTML version deleted]]

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and provide commented, minimal, self-contained, reproducible code.