Hello,
After installing R 2.8, I've had been unable to load MatchIt due to a
problem with optmatch. Is anybody else having a similar issue?
The specific error is below.
> library(MatchIt)
Loading required package: optmatch
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared library
'/Users/bendomingue/Library/R/2.8/library/optmatch/libs/ppc/optmatch.so':
dlopen(/Users/bendomingue/Library/R/2.8/library/optmatch/libs/ppc/optmatch.so,
6): Library not loaded:
/Library/Frameworks/R.framework/Versions/2.7/Resources/lib/libgfortran.2.dylib
Referenced from:
/Users/bendomingue/Library/R/2.8/library/optmatch/libs/ppc/optmatch.so
Reason: image not found
Error: package 'optmatch' could not be loaded
>
A more experienced hand could probably figure out what's going wrong,
and absent any good advice that's what I'll be trying to do later
today but I thought I'd see if anybody else had a similar problem.
Thanks,
Ben
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Can you tell me your syntax? I'm not sure how you are using plot.zelig()
to plot the propensity score. Are you using the plot function that comes
with MatchIt?
If the issue is just about the title, then what you can do is to go into
the pdf file of your plot (that is, open it in a text editor such as
emacs, NotePad, WinEdt, etc.), then do search and find "Distribution of
Propensity Scores" and simply delete those words (keep the quotation
marks).
Best,
Kosuke
--
Department of Politics
Princeton University
http://imai.princeton.edu
On Sun, 19 Oct 2008, Beaujean, Alex wrote:
> Drs. Imai & King:
>
> Hi. I am using your MatchIt and Zelig programs, and plotted
> (type="jitter") the propensity scores for matched participants via the
> plot.zelig() function. The title: "Distribution of Propensity Scores"
> seems to be hardcoded into this output. I am wondering if you knew how
> to turn this off. The journal I'm submitting the manuscript to doesn't
> want titles on the graphics.
>
> Thanks for any help you can offer,
>
> Alex
> -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
> A. Alexander Beaujean, PhD
> Licensed Psychologist
> Assistant Professor, Department of Educational Psychology
> Director, Baylor Psychometric Laboratory
> One Bear Place #97301
> Waco, TX 76798-7301
> Alex_Beaujean(a)Baylor.edu
> Ph: 254.710.1548
> Fax: (254) 710-3265
> http://myprofile.cos.com/abeaujean
> http://homepages.baylor.edu/psychometric_lab
>
> "I'm always amazed to see a psychologist offering a glib explanation of
> some immensely complex behavioral incident when psychological science
> has not even provided explanations for comparatively simple general
> phenomena..." --Arthur R. Jensen
>
> "At one time psychology courses were the recognized refuge of those who
> wished to take a 'science' without facing the rigors of mathematics--as
> encountered, for example, in chemistry and physics. Nowadays the
> psychologist, and even the biologist need to be as good at mathematics
> as the engineering student." --Raymond B. Cattell
>
>
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Hello,
I can't find this problem discussed in the archive and was wondering
if anybody knew what was going on. If I subclassify with the lalonde
data, I get an error when I try to use summary.
> m.out <- matchit(treat ~ re74 + re75 + educ + black + hispan + age,
+ data = lalonde, method = "subclass",sub.by="all",discard="control",subclass=3)
> summary(m.out)
Error in summary.matchit.subclass(m.out) : object "sub.by" not found
>
The issue here is definitely the sub.by option, using the default
sub.by of treat doesn't cause this problem. I don't know how the
summary method works, so I'm not sure how painful a problem this may
be to fix.
Thanks,
Ben
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