[R] drop levels problem

2010-11-29 Thread Felipe Carrillo
Hi all: I am having trouble dropping levels, got a few hints online without success. Please consider the dataset below:  I was under the inpression that subset(..drop=TRUE) would work but it doesn't library(ggplot2)     library(hmisc) x - structure(list(first = c(38.2086, 43.1768, 43.146,

Re: [R] drop levels problem

2010-11-29 Thread Joshua Wiley
Hi Felipe, On Mon, Nov 29, 2010 at 11:01 AM, Felipe Carrillo mazatlanmex...@yahoo.com wrote: Hi all: I am having trouble dropping levels, got a few hints online without success. Please consider the dataset below:  I was under the inpression that subset(..drop=TRUE) would work but it

Re: [R] drop levels problem

2010-11-29 Thread Henrique Dallazuanna
Take a look on droplevels function (R = 2.12) On Mon, Nov 29, 2010 at 5:01 PM, Felipe Carrillo mazatlanmex...@yahoo.comwrote: Hi all: I am having trouble dropping levels, got a few hints online without success. Please consider the dataset below: I was under the inpression that

Re: [R] drop levels problem

2010-11-29 Thread Felipe Carrillo
...@yahoo.com Cc: r-h...@stat.math.ethz.ch Sent: Mon, November 29, 2010 11:18:45 AM Subject: Re: [R] drop levels problem Hi Felipe, On Mon, Nov 29, 2010 at 11:01 AM, Felipe Carrillo mazatlanmex...@yahoo.com wrote: Hi all: I am having trouble dropping levels, got a few hints online without

Re: [R] drop levels problem

2010-11-29 Thread Joshua Wiley
Just to follow up on my own post a bit: xmelt$year[xmelt$year == first, drop = TRUE] will do what you want. I think because in the subset there are multiple columns not all of which are factor, the method for '[' being used is not the factor one that would drop unused levels. I did not make