I recommend that you troubleshoot your own problem using the str function...
for example, str( coeftest(lmodT_WBHO)). The error message is not a "code"...
it is perfectly readable English, and it is telling you that the result of
calling coeftest is not a list with parts that can be pulled out using the $
operator.
---------------------------------------------------------------------------
Jeff Newmiller The ..... ..... Go Live...
DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go...
Live: OO#.. Dead: OO#.. Playing
Research Engineer (Solar/Batteries O.O#. #.O#. with
/Software/Embedded Controllers) .OO#. .OO#. rocks...1k
---------------------------------------------------------------------------
Sent from my phone. Please excuse my brevity.
rl269 <rl...@acad.umass.edu> wrote:
>I want to use the standard error values in the summary that is produced
>using
>coeftest, but I am getting an error code- any ideas?
>
>> library(lmtest)
>> coeftest(lmodT_WBHO)
>
>t test of coefficients:
>
> Estimate Std. Error t value Pr(>|t|)
>t1W 5.94819 0.17072 34.8410 < 2.2e-16 ***
>t2W 6.56216 0.17438 37.6322 < 2.2e-16 ***
>t3W 6.08252 0.16525 36.8082 < 2.2e-16 ***
>t4W 6.18041 0.17028 36.2949 < 2.2e-16 ***
>t1B 5.50000 0.50566 10.8768 < 2.2e-16 ***
>t2B 5.65000 0.53034 10.6535 < 2.2e-16 ***
>t3B 4.52381 0.51756 8.7406 < 2.2e-16 ***
>t4B 4.38095 0.51756 8.4646 < 2.2e-16 ***
>t1H 5.05000 0.53034 9.5221 < 2.2e-16 ***
>t2H 4.77778 0.55903 8.5465 < 2.2e-16 ***
>t3H 5.52632 0.54412 10.1564 < 2.2e-16 ***
>t4H 4.71429 0.63388 7.4372 2.236e-13 ***
>t1O 5.17647 0.57524 8.9988 < 2.2e-16 ***
>t2O 5.81818 0.50566 11.5060 < 2.2e-16 ***
>t3O 6.50000 0.63388 10.2543 < 2.2e-16 ***
>t4O 5.71429 0.63388 9.0147 < 2.2e-16 ***
>---
>Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
>
>> se1 <- coeftest(lmodT_WBHO)$coef[,2]
>Error in coeftest(lmodT_WBHO)$coef :
> $ operator is invalid for atomic vectors
>>
>
>
>--
>View this message in context:
>http://r.789695.n4.nabble.com/error-code-trying-to-extract-second-column-from-coeftest-output-tp4630298.html
>Sent from the R help mailing list archive at Nabble.com.
>
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>PLEASE do read the posting guide
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>and provide commented, minimal, self-contained, reproducible code.
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