2 Feb
2011
2 Feb
'11
6:54 p.m.
Hi:
I am getting an error message when I try to use sim() on a bivariate probit model. After
setting the explanatory variables, I get the following error message:
s.out<-sim(z.out,x.out)
Error in UseMethod("vcov") : no applicable method for 'vcov' applied
to an object of class "c('vglm', 'vlm',
'vlmsmall')"
Any suggestions?
Thank you,
db
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2 Feb
2 Feb
7:30 p.m.
Did you update both Zelig and VGAM to the most recent versions? If so, the following
command should work:
demo(bprobit)
If not, my guess is that you might have overwritten some of the functions when you loaded
other packages, for example. So, I would restart R and then just run the command you need
to run.
Kosuke
Department of Politics
Princeton University
http://imai.princeton.edu
On Feb 2, 2011, at 6:54 PM, David Blough wrote:
Hi:
I am getting an error message when I try to use sim() on a bivariate probit model. After
setting the explanatory variables, I get the following error message:
-
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s.out<-sim(z.out,x.out)
Error in UseMethod("vcov") : no applicable method for 'vcov' applied
to an object of class "c('vglm', 'vlm',
'vlmsmall')"
Any suggestions?
Thank you,
db
-
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Send messages: zelig(a)lists.gking.harvard.edu
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Zelig program information: http://gking.harvard.edu/zelig/
3 Feb
3 Feb
10:08 a.m.
I have R 12.2.1 and the latest VGAM and Zelig packages. I have tired loading just Zelig
and running the simulation and loading Zelig and VGAM in both orders and running the
simulation. Still the same problem. When I start R it starts with just the basic
packages installed. When I try to run the demo(bprobit), I get the same error message
when I try to run the simulations:
s.out1 <- sim(z.out1, x = x.low, x1 = x.high)
Error in UseMethod("vcov") : no applicable method for 'vcov'
applied to an object of class "c('vglm', 'vlm',
'vlmsmall')"
I appreciate your quick response. Any other suggestions?
Thank you,
db
David Blough, PhD
Research Associate Professor
Department of Pharmacy
University of Washington
Seattle, WA 98195-3835
Tel 206-685-9658 Fax 206-543-3835
On Feb 2, 2011, at 4:30 PM, Kosuke Imai wrote:
Did you update both Zelig and VGAM to the most recent
versions? If so, the following command should work:
demo(bprobit)
If not, my guess is that you might have overwritten some of the functions when you loaded
other packages, for example. So, I would restart R and then just run the command you need
to run.
Kosuke
Department of Politics
Princeton University
http://imai.princeton.edu
On Feb 2, 2011, at 6:54 PM, David Blough wrote:
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Hi:
I am getting an error message when I try to use sim() on a bivariate probit model. After
setting the explanatory variables, I get the following error message:
s.out<-sim(z.out,x.out)
Error in UseMethod("vcov") : no applicable method for 'vcov' applied
to an object of class "c('vglm', 'vlm',
'vlmsmall')"
Any suggestions?
Thank you,
db
-
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10:57 a.m.
I'm sorry, but I don't know what's wrong. I have the following and
demo(bprobit) works for me:
R 2.12.1
Zelig: 3.4-8
VGAM: 0.8-1
Kosuke
--
Department of Politics
Princeton University
http://imai.princeton.edu
On Thu, 3 Feb 2011, David Blough wrote:
I have R 12.2.1 and the latest VGAM and Zelig
packages. I have tired loading just Zelig and running the simulation and loading Zelig
and VGAM in both orders and running the simulation. Still the same problem. When I start
R it starts with just the basic packages installed. When I try to run the demo(bprobit),
I get the same error message when I try to run the simulations:
-
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s.out1 <- sim(z.out1, x = x.low, x1 = x.high)
Error in UseMethod("vcov") : no applicable method for 'vcov'
applied to an object of class "c('vglm', 'vlm',
'vlmsmall')"
I appreciate your quick response. Any other suggestions?
Thank you,
db
David Blough, PhD
Research Associate Professor
Department of Pharmacy
University of Washington
Seattle, WA 98195-3835
Tel 206-685-9658 Fax 206-543-3835
On Feb 2, 2011, at 4:30 PM, Kosuke Imai wrote:
Did you update both Zelig and VGAM to the most
recent versions? If so, the following command should work:
demo(bprobit)
If not, my guess is that you might have overwritten some of the functions when you loaded
other packages, for example. So, I would restart R and then just run the command you need
to run.
Kosuke
Department of Politics
Princeton University
http://imai.princeton.edu
On Feb 2, 2011, at 6:54 PM, David Blough wrote:
-
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Hi:
I am getting an error message when I try to use sim() on a bivariate probit model. After
setting the explanatory variables, I get the following error message:
s.out<-sim(z.out,x.out)
Error in UseMethod("vcov") : no applicable method for 'vcov' applied
to an object of class "c('vglm', 'vlm',
'vlmsmall')"
Any suggestions?
Thank you,
db
-
Zelig Mailing List, served by Harvard-MIT Data Center
Send messages: zelig(a)lists.gking.harvard.edu
[un]subscribe Options: http://lists.gking.harvard.edu/?info=zelig
Zelig program information: http://gking.harvard.edu/zelig/
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Kosuke Imai