Hello john,
thanks for the suggestion. Please find an example:
> X<-matrix(rnorm(5*10),nrow=5)
> dim(X)
[1] 5 10
> X
[,1] [,2] [,3] [,4] [,5] [,6]
[,7] [,8] [,9] [,10]
[1,] 1.2774431 -1.2427735 0.81933548 -2.1098586 -1.6726799 -2.2994684
-0.28823228 0.1929301 0.1187168 -1.2078372
[2,] 0.5969187 -1.2571336 0.30292368 -0.2098139 -0.9689961 1.7105109
0.77240398 0.1482712 -1.2486152 0.2359723
[3,] -0.9669289 -0.2315229 1.04611417 0.7902772 0.5791674 0.6296305
-0.60517647 0.5317435 -0.2556417 -0.4838956
[4,] -1.9345400 0.2898647 0.08983352 0.1482130 0.8229054 0.7778114
0.49423641 0.4015327 2.8596603 0.6618432
[5,] -1.1969226 -1.3991657 -0.76507258 0.5024922 0.2633307 0.0236774
-0.09497448 -0.3986624 0.1327156 -0.8935923
> X[2,5]<-0
> X[3,1]<-0
> X[6,8]<-0
> X[5,8]<-0
> X
[,1] [,2] [,3] [,4] [,5] [,6]
[,7] [,8] [,9] [,10]
[1,] 1.2774431 -1.2427735 0.81933548 -2.1098586 -1.6726799 -2.2994684
-0.28823228 0.1929301 0.1187168 -1.2078372
[2,] 0.5969187 -1.2571336 0.30292368 -0.2098139 0.0000000 1.7105109
0.77240398 0.1482712 -1.2486152 0.2359723
[3,] 0.0000000 -0.2315229 1.04611417 0.7902772 0.5791674 0.6296305
-0.60517647 0.5317435 -0.2556417 -0.4838956
[4,] -1.9345400 0.2898647 0.08983352 0.1482130 0.8229054 0.7778114
0.49423641 0.4015327 2.8596603 0.6618432
[5,] -1.1969226 -1.3991657 -0.76507258 0.5024922 0.2633307 0.0236774
-0.09497448 0.0000000 0.1327156 -0.8935923
Now I want to sort and remove "zero" based on rows.
for example for column 1:
[1,]1.2774431
[2,]0.5969187
[5,]-1.1969226
[4,]-1.9345400
Regards
Nico
On Wed, Aug 29, 2012 at 3:29 PM, John Kane <jrkrid...@inbox.com> wrote:
> Perhaps you could supply the matrix using dput() ? It is a handy way to
> supply sample data. Just do dput(mydata), copy the results and paste into
> email.
>
> At the moment your matrix is almost unreadable.
>
> John Kane
> Kingston ON Canada
>
>
> > -----Original Message-----
> > From: nicome...@gmail.com
> > Sent: Wed, 29 Aug 2012 15:24:17 +0200
> > To: r-help@r-project.org
> > Subject: [R] Sorting of columns of a matrix
> >
> > Dear all,
> >
> > Please suggest me how can I do it.
> >
> >
> > I have a matrix which look like following:
> >
> > x1 x2 x3 t1 .01 0.3 0 t2 0 0.1 0.01 t3 0 .01 .01 t4 0 0 t5 5 0 0
> > t6
> > 0 0 0 t7 0 0 0 t8 0 0 0 t9 0.6 0 0 t10 0 0 0.66 t11 0 0.6 0.11 t12
> > 0
> > 0.4 0
> >
> > I want to sort decreasing order in each column based on rows. and then to
> > display only those rows which has a value. The expected out put matrix
> > will
> > look like
> >
> > x1 x2 x3 t9 0.6 t11 0.6 t10 0.66 t1 .01 t12 0.4 t11 0.11 t1 0.3 t2
> > .01
> > t2 0.1 t3 .01
> > many thanks
> >
> > Nico
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
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> > https://stat.ethz.ch/mailman/listinfo/r-help
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> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
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