Re: [R] Sum results in a matrix
thank you
It is working, a question in the wake of the array.
with the following code I am creating a data frame to store the data without
repeating the code is working.
The question is the best way to do this process in R
tab-NULL
for(i in 1: nrow(res4))
{
for(j in i:nrow(res4))
{
#print(paste(i,-,j,-,res4[i,j]))
temp-data.frame(i,j,res4[i,j])
tab-rbind(tab,temp)
}
}
tab
i j res4.i..j.
1 1 1 0
2 1 2 21
3 1 3 0
4 1 4 0
5 1 5 0
6 1 6 0
7 1 7 0
8 2 2 0
--
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Re: [R] Sum results in a matrix
On Wed, Mar 14, 2012 at 02:28:22AM -0700, RMSOPS wrote:
thank you
It is working, a question in the wake of the array.
with the following code I am creating a data frame to store the data without
repeating the code is working.
The question is the best way to do this process in R
tab-NULL
for(i in 1: nrow(res4))
{
for(j in i:nrow(res4))
{
#print(paste(i,-,j,-,res4[i,j]))
temp-data.frame(i,j,res4[i,j])
tab-rbind(tab,temp)
}
}
Hi.
Try the following.
# create a matrix
res4 - matrix(1:12, nrow=3, ncol=4)
d - dim(res4)
ind - expand.grid(i=1:d[1], j=1:d[2])
cbind(ind, res4=c(res4))
i j res4
1 1 11
2 2 12
3 3 13
4 1 24
5 2 25
6 3 26
7 1 37
8 2 38
9 3 39
10 1 4 10
11 2 4 11
12 3 4 12
Hope this helps.
Petr Savicky.
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[R] Sum results in a matrix
Hello, With the following code get the results array res3-table(df$v_source,df$v_destine) 1 2 3 4 5 6 7 1 0 10 0 0 0 0 0 2 11 0 0 0 0 0 0 3 0 0 18 15 0 0 0 4 0 0 15 11 0 0 0 5 0 0 0 0 1 0 0 6 0 0 0 0 0 1 0 7 0 0 0 0 0 0 18 my idea was to create a new table of results from res3 but making the sum of the results where the position of the origin and destination were reversed. for example [1,2]= 10 [2,1]=11 New Table Final. points result [1 and 2]21 thanks -- View this message in context: http://r.789695.n4.nabble.com/Sum-results-in-a-matrix-tp4468936p4468936.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sum results in a matrix
res3 + t(res3) Michael On Tue, Mar 13, 2012 at 8:15 AM, RMSOPS ricardosousa2...@clix.pt wrote: Hello, With the following code get the results array res3-table(df$v_source,df$v_destine) 1 2 3 4 5 6 7 1 0 10 0 0 0 0 0 2 11 0 0 0 0 0 0 3 0 0 18 15 0 0 0 4 0 0 15 11 0 0 0 5 0 0 0 0 1 0 0 6 0 0 0 0 0 1 0 7 0 0 0 0 0 0 18 my idea was to create a new table of results from res3 but making the sum of the results where the position of the origin and destination were reversed. for example [1,2]= 10 [2,1]=11 New Table Final. points result [1 and 2] 21 thanks -- View this message in context: http://r.789695.n4.nabble.com/Sum-results-in-a-matrix-tp4468936p4468936.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
