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To: Yuan, Qiaoping (NIH/NIAAA) [E] [EMAIL PROTECTED]
Copies to: r-help@stat.math.ethz.ch
Subject:Re: [R] subtotal for same row data
try this:
x - as.data.frame(x)
x
C1 C2 C3 F
R1 1 2 2 0.3
R2 2 2 2 0.5
R3 1 2 1 0.2
do.call('rbind',by(x, list(x
Hi, There,
I would like to subtotal the number in a specified column for all rows
having the same data for specified columns. The following is the simple
example:
x=matrix(c(1,2,2,0.3,2,2,2,0.5,1,2,1,0.2),3,4,byrow=T)
rownames(x)=c(R1,R2,R3)
colnames(x)=c(C1,C2,C3,F)
x
C1 C2
Hi, There,
I would like to subtotal the number in a specified column for all rows having
the same data for specified columns. The following is the simple example:
x=matrix(c(1,2,2,0.3,2,2,2,0.5,1,2,1,0.2),3,4,byrow=T)
rownames(x)=c(R1,R2,R3)
colnames(x)=c(C1,C2,C3,F)
x
C1 C2 C3 F
R1
try this:
x - as.data.frame(x)
x
C1 C2 C3 F
R1 1 2 2 0.3
R2 2 2 2 0.5
R3 1 2 1 0.2
do.call('rbind',by(x, list(x$C1, x$C2), function(z){z$F - sum(z$F);
z[1,]}))
C1 C2 C3 F
R1 1 2 2 0.5
R2 2 2 2 0.5
On 3/23/07, Yuan, Qiaoping (NIH/NIAAA) [E] [EMAIL PROTECTED] wrote:
