Dear Stephen C. Upton & Petr Pikal
Thank you both very much for the suggestions!
Best wishes, Muhammad Subianto
On this day 24/08/2006 12:03, Muhammad Subianto wrote:
> Dear all,
> I have a dataset
> train <- cbind(c(0,2,2,1,0), c(8,9,4,0,2), 6:10, c(-1, 1, 1, -1, 1))
> test <- cbind(1:5, c(0,1,5
ammad Subianto" <[EMAIL PROTECTED]>
To: r-help@stat.math.ethz.ch
Subject: [R] How to compare rows of two matrices
> Dear all,
> I have a dataset
> train <- cbind(c(0,2,2,1,0), c(8,9,4,0,2), 6:10, c(-1, 1, 1, -1, 1))
> test <- cbind(1:5,
Does this work for you?
dd <- mapply("==",train,test)
> dim(dd) <- dim(train)
> dd
[,1] [,2] [,3] [,4]
[1,] FALSE FALSE FALSE FALSE
[2,] TRUE FALSE FALSE TRUE
[3,] FALSE FALSE FALSE FALSE
[4,] FALSE FALSE FALSE FALSE
[5,] FALSE FALSE FALSE TRUE
HTH
steve
Muhammad Subianto wrote:
>
Dear all,
I have a dataset
train <- cbind(c(0,2,2,1,0), c(8,9,4,0,2), 6:10, c(-1, 1, 1, -1, 1))
test <- cbind(1:5, c(0,1,5,1,3), c(1,1,2,0,3) ,c(1, 1, -1, 1, 1))
I want to find which rows of train and test it different in its last
column (column 4).
The solution must be something like
train
