[R] Sorting of columns of a matrix

[John Kane]

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: nicomet80 at gmail.com
> Sent: Wed, 29 Aug 2012 15:24:17 +0200
> To: r-help at 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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