Displaying 3 results from an estimated 3 matches for "sumrows".
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sumrow
2011 Nov 21
4
Discarding a matrix based on the rowSums value
Hello
I would appreciate your help on the followig. I want to generate random
binary matrices but I need to discard those with all-1 rows. That is, for a
10x10 matrix with five 1's
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 0 0 0 0 0 0 0 0 0 1
[2,] 0 0 0 0 0 0 1 0 0 0
[3,] 0 0 0 0 0 0 1
2012 Dec 17
2
Why does matrix selection behave differently when using which?
...greater than the number of
rows in "t".
The table "t" I use can be downloaded from here:
https://github.com/groupschoof/PhyloFun/archive/test_selector.zip
Unzip the file and read in the table "t" using t <- read.table("test.tbl")
The above function "sumRows" is defined as follows:
sumRows <- function( tbl, ps ) {
sum(
sapply(ps,
function(x) {
t <- if ( is.na(x) ) {
tbl[ which( is.na(tbl[ , "Domain.Architecture.Distance" ]) ), ,
drop=F]
} else {
tbl[ which( tbl[ , "Domain.Archite...
2010 Oct 20
2
rowsum
Hello,
I am trying to achieve something which I *think* is possible using rowsum,
but a little help should be useful:
Consider the following dataframe DF0:
A B C
89 1 140
89 06 20
89 29 137
89 52 13
89 57 10
89 97 23
89 1 37
89 1 12
89 1 3
52 1 11
52 1 31
52 1 16
52 1 6
52 1 10
52 1 13
52 1 10
52 1 25
52 1 2
52 59 38
52 97 75
57 1 14
57 1 13
57 1 14
57 114 12
57 1 23
57 06 26
I need create a