Hello everybody, I am trying to do a logistic regression model with lrm() from the design package. I am comparing to groups with different medical outcome which can either be "good" or "bad". In the help file it says that lrm codes al responses to 0,1,2,3, etc. internally and does so in alphabetical order. I would guess this means bad=0 and good=1. My question: I am trying to figure out the connection between my factors and my response. Which probability is being calculated that of good or bad (1 or 0, respectively). I'm not sure whether I made clear what I was trying to say but will be very grateful for all help. -- View this message in context: http://www.nabble.com/lrm-in-Design-tp25206737p25206737.html Sent from the R help mailing list archive at Nabble.com.
See: https://stat.ethz.ch/pipermail/r-help/2009-July/204192.html and also other posts in that thread. On Sat, Aug 29, 2009 at 6:02 PM, loch1<loch at gmx.li> wrote:> > Hello everybody, > I am trying to do a logistic regression model with lrm() from the design > package. I am comparing to groups with different medical outcome which can > either be "good" or "bad". In the help file it says that lrm codes al > responses to 0,1,2,3, etc. internally and does so in alphabetical order. I > would guess this means bad=0 and good=1. > > My question: I am trying to figure out the connection between my factors and > my response. Which probability is being calculated that of good or bad (1 or > 0, respectively). > > I'm not sure whether I made clear what I was trying to say but will be very > grateful for all help. > -- > View this message in context: http://www.nabble.com/lrm-in-Design-tp25206737p25206737.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at 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. >
Thank you for your reply, it helped. That thread is about glm, I take it that lrm behaves in the same way?!? See: https://stat.ethz.ch/pipermail/r-help/2009-July/204192.html and also other posts in that thread. -- View this message in context: http://www.nabble.com/lrm-in-Design-tp25206737p25209958.html Sent from the R help mailing list archive at Nabble.com.
Presumably the same idea would apply to lrm if appropriately adapted. On Sun, Aug 30, 2009 at 5:19 AM, loch1<loch at gmx.li> wrote:> > Thank you for your reply, it helped. That thread is about glm, I take it that > lrm behaves in the same way?!? > > > > See: > https://stat.ethz.ch/pipermail/r-help/2009-July/204192.html > > and also other posts in that thread. > > -- > View this message in context: http://www.nabble.com/lrm-in-Design-tp25206737p25209958.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at 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. >