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Verzonden: vrijdag 7 september 2012 18:17
Aan: Berg, Tobias van den
CC: PIKAL Petr; r-help
Onderwerp: Re: [R] error: in catg (xi, name=nam, label=lab): LO2 has 2
category levels
On Sep 7, 2012, at 8:03 AM, Berg, Tobias van den wrote:
Dear all,
Probably I made a beginners mistake. While importing
Dear R-users,
During a fit procedure in a Logistic prediction model I encounter the
following problem:
error: in catg (xi, name=nam, label=lab: X has 2 category levels
The following code is used:
fit -lrm(MRI_Diag_RC ~ factor(O4_1r) + N6_1r + leeftijd + LO1 + LO2 + LO3+
LO4+ LO5+ LO6+ LO7+
Hi
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Tvandenberg
Sent: Friday, September 07, 2012 1:05 PM
To: r-help@r-project.org
Subject: [R] error: in catg (xi, name=nam, label=lab): LO2 has 2
category levels
Dear R
You appeaer to be using the rms package. Please follow the posting guide.
The error message looks to be self-explanatory (empty cell); you just have
to find which predictor it applies to.
As an aside, rms does not like you to use factor() in a model, and there's
probably a more concise way to
): LO2 has
2 category levels
Hi
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Tvandenberg
Sent: Friday, September 07, 2012 1:05 PM
To: r-help@r-project.org
Subject: [R] error: in catg (xi, name=nam, label=lab): LO2 has
: [R] error: in catg (xi, name=nam, label=lab): LO2 has 2
category levels
Hi
It is good to cc to list. Somebody could have better insight.
Dear Petr,
Thank you for responding. It seems right what you say. The funny thing
however is that the 'LO2' variable in SPSS has 2 answer categories
result shows in R:
Error in catg(xi, name = nam, label = lab) : LO2 has 2 category levels
I checked the simulated datasets how many values within LO2 are known, using:
lapply (subsets, function (x) {str(x$LO2)})
Instead do :
apply (subsets, function (x) {table(x$LO2)})
You cannot tell what
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