Displaying 2 results from an estimated 2 matches for "subest".
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subtest
2011 Dec 10
1
Difficult subset challenge
Hi,
I'm having difficulty coming up with a good way to subest some data to generate statistics.
My data frame has multiple observations by group.
Here is an overly-simplified toy example of the data
==========================
code v1 v2
G1 1.2 2.3
G1 0 2.4
G1 1.4 3.4
G2 2.9 2.3
G2 4.3 4.4
etc..
=========================
I want to normalize the data *b...
2003 Jul 14
2
Subsetting a matrix
I'd welcome some comments or advice regarding the situation described
below.
The following illustrates what seems to me to be an inconsistency
in the behaviour of matrix subsetting:
> Z<-matrix(c(1.1,2.1,3.1,1.2,2.2,3.2,1.3,2.3,3.3),nrow=3)
> Z
[,1] [,2] [,3]
[1,] 1.1 1.2 1.3
[2,] 2.1 2.2 2.3
[3,] 3.1 3.2 3.3
> dim(Z)
[1] 3 3
>