> sessionInfo()
R version 2.15.0 (2012-03-30)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] grid datasets splines utils stats
[6] graphics grDevices methods base
other attached packages:
[1] effects_2.1-0 colorspace_1.1-1
[3] nnet_7.3-1 nlme_3.1-103
[5] lattice_0.20-6 reshape_0.8.4
[7] plyr_1.7.1 catdata_1.0
[9] cacheSweave_0.6-1 stashR_0.3-5
[11] filehash_2.2-1 BiocInstaller_1.4.3
[13] ctv_0.7-4 sos_1.3-1
[15] brew_1.0-6 Hmisc_3.9-3
[17] survival_2.36-12 MASS_7.3-17
loaded via a namespace (and not attached):
[1] cluster_1.14.2 digest_0.5.2 tools_2.15.0
# copy and paste the following:
library( catdata )
data( unemployment )
unempt <- unemployment
unempt$durbin <- unempt$durbin - 1
library( reshape )
unempt <- melt( table( unempt ) )
unempw <- cast( unempt, age ~ durbin )
names( unempw ) <- c( 'age', 'short', 'long' )
modt <- glm( durbin ~ age, weights = value, family = binomial, data = unempt )
modw <- glm( cbind( short, long ) ~ age, family = binomial, data = unempw )
library( effects )
modt.ef <- effect( 'age', modt ) # works!
modw.ef <- effect( 'age', modw ) # doesn't work!
# Error in eval(expr, envir, enclos) : object 'age' not found
# end
______________________________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
for mail add: for FedEx or UPS add:
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Charlottesville, VA 22904-4400 485 McCormick Road
USA Charlottesville, VA
22903
room phone
Office: B011 +1-434-982-4729
Lab: B019 +1-434-982-4751
WWW: http://www.people.virginia.edu/~mk9y/
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