Re: [R] select rows by criteria

2012-03-01 Thread Rui Barradas
Hello, again. Petr Savicky wrote > > On Thu, Mar 01, 2012 at 05:42:48PM +0100, Petr Savicky wrote: >> On Thu, Mar 01, 2012 at 04:27:45AM -0800, syrvn wrote: >> > Hello, >> > >> > I am stuck with selecting the right rows from a data frame. I think the >> > problem is rather how to select them >>

Re: [R] select rows by criteria

2012-03-01 Thread Petr Savicky
On Thu, Mar 01, 2012 at 05:42:48PM +0100, Petr Savicky wrote: > On Thu, Mar 01, 2012 at 04:27:45AM -0800, syrvn wrote: > > Hello, > > > > I am stuck with selecting the right rows from a data frame. I think the > > problem is rather how to select them > > then how to implement the R code. > > > >

Re: [R] select rows by criteria

2012-03-01 Thread Rui Barradas
Sorry, correction: The second index matrix is the matrix of elements not in the first, not another combination, this time 3 out of 10. Change this in my first post > > inxmat <- with(DF, combn(ID, 3)) > meansDist2 <- apply(inxmat, 2, function(jnx) f(jnx, DF$value, 45)) > (i2 <- which(meansDist2

Re: [R] select rows by criteria

2012-03-01 Thread Rui Barradas
Hello, syrvn wrote > > Hello, > > I am stuck with selecting the right rows from a data frame. I think the > problem is rather how to select them > then how to implement the R code. > > Consider the following data frame: > > df <- data.frame(ID = c(1,2,3,4,5,6,7,8,9,10), value = > c(34,12,23,

Re: [R] select rows by criteria

2012-03-01 Thread Petr Savicky
On Thu, Mar 01, 2012 at 05:42:48PM +0100, Petr Savicky wrote: > On Thu, Mar 01, 2012 at 04:27:45AM -0800, syrvn wrote: > > Hello, > > > > I am stuck with selecting the right rows from a data frame. I think the > > problem is rather how to select them > > then how to implement the R code. > > > >

Re: [R] select rows by criteria

2012-03-01 Thread Petr Savicky
On Thu, Mar 01, 2012 at 04:27:45AM -0800, syrvn wrote: > Hello, > > I am stuck with selecting the right rows from a data frame. I think the > problem is rather how to select them > then how to implement the R code. > > Consider the following data frame: > > df <- data.frame(ID = c(1,2,3,4,5,6,7,

[R] select rows by criteria

2012-03-01 Thread syrvn
Hello, I am stuck with selecting the right rows from a data frame. I think the problem is rather how to select them then how to implement the R code. Consider the following data frame: df <- data.frame(ID = c(1,2,3,4,5,6,7,8,9,10), value = c(34,12,23,25,34,42,48,29,30,27)) What I want to achiev