Loading... |
Reply to author |
Edit post |
Move post |
Delete this post |
Delete this post and replies |
Change post date |
Print post |
Permalink |
Raw mail |
![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Hi,
I have recently been running some ordinal regression analyses in SPSS, using the negative log log link function (as the lower categories of the dependent variable are more probable). I have some estimates from this analysis and would like to transform them into odds ratios with confidence intervals. I am aware that this process would be easier is I was using a logit link function as I could just exponentiate the estimate given, but I am unsure what to do with estimates calculated via a negative log log link function. Any information/tips/hints on this would be very very useful. Kind Regards, Tim. ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
Loading... |
Reply to author |
Edit post |
Move post |
Delete this post |
Delete this post and replies |
Change post date |
Print post |
Permalink |
Raw mail |
![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Perhaps you've already gotten useful off-list replies.
I assume you can work backwards with the function [-ln(-ln(x))]. (This function, NLOGLOG, looks to be a variant of the ComplentaryLOGLOG function.) It looks like what you compute when you do that is the predicted probability. So, with a 0-1 category variable, a '1' increases the probability of the outcome by an amount 'B'. Gene Maguin -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Tim Pickles Sent: Wednesday, February 27, 2013 10:53 AM To: [hidden email] Subject: Negative log log link function in ordinal regression Hi, I have recently been running some ordinal regression analyses in SPSS, using the negative log log link function (as the lower categories of the dependent variable are more probable). I have some estimates from this analysis and would like to transform them into odds ratios with confidence intervals. I am aware that this process would be easier is I was using a logit link function as I could just exponentiate the estimate given, but I am unsure what to do with estimates calculated via a negative log log link function. Any information/tips/hints on this would be very very useful. Kind Regards, Tim. ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
Free forum by Nabble | Edit this page |