Message-ID: <1352046617.98754.YahooMailNeo@web142602.mail.bf1.yahoo.com>
Date: 2012-11-04T16:30:17Z
From: arun
Subject: For loop...
In-Reply-To: <CAN8uQpucO46wjZ_1fts3kRjudAd0MTmCdPb8BgXmx3=vdW6mtw@mail.gmail.com>
HI,
Try this:
dat1<-read.table(text="
A????????????? B??????????? C?????
1????????????? 10????????? 1??????
2????????????? 30????????? 1??????
3????????????? 50????????? 1??????
1000????? 1000??????? 1???????
1????????????? 10????????? 2??
2????????????? 30????????? 2??
3????????????? 50????????? 2??
1000??????? 1000????? 2???????
",sep="",header=TRUE)
?dat1$R<-apply(dat1,1,function(x) x[1]+x[2]*x[3])
?dat1
#???? A??? B C??? R
#1??? 1?? 10 1?? 11
#2??? 2?? 30 1?? 32
#3??? 3?? 50 1?? 53
#4 1000 1000 1 2000
#5??? 1?? 10 2?? 21
#6??? 2?? 30 2?? 62
#7??? 3?? 50 2? 103
#8 1000 1000 2 3000
A.K.
----- Original Message -----
From: SHAILLY MEHROTRA <shaillymehrotra at gmail.com>
To: r-help at r-project.org
Cc:
Sent: Sunday, November 4, 2012 7:07 AM
Subject: [R] For loop...
Dear R-users,
I have dataset? with column A and B with1000 values,
For each of column C value (C = seq(1,1000,1), I want to repeat A and B
values and calculate R = A+B*C for each row.
I want to get output as
A? ? ? ? ? ? ? B? ? ? ? ? ? C? ? ? ? R
1? ? ? ? ? ? ? 10? ? ? ? ? 1? ? ? ? 11
2? ? ? ? ? ? ? 30? ? ? ? ? 1? ? ? ? 32
3? ? ? ? ? ? ? 50? ? ? ? ? 1? ? ? ? 53
1000? ? ? 1000? ? ? ? 1? ? ? ? 2000
1? ? ? ? ? ? ? 10? ? ? ? ? 2? ? ? ? 21
2? ? ? ? ? ? ? 30? ? ? ? ? 2? ? ? ? 62
3? ? ? ? ? ? ? 50? ? ? ? ? 2? ? ? ? 103
1000? ? ? ? 1000? ? ? 2? ? ? ? 3000
How can I do it using for loop?
Thanks
Shailly
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