Undefined control sequence

assafwe · Post by **assafwe** » Tue Oct 20, 2009 8:06 pm

Hi,

I get an "Undefined control sequence" error in LyX, when trying to convert to pdf.. the full error message is attached..

Thanks!

Asaf

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Post by **Stefan Kottwitz** » Tue Oct 20, 2009 9:00 pm

Hi Asaf,

the command \alphatests is not defined. In my whole TeX Live 2009 installation there's no macro called \alphatests or \alphatest. Did you call that command or a package?

Stefan

assafwe · Post by **assafwe** » Wed Oct 21, 2009 7:42 am

Thanks, Stefan,

I didn't mean "\alphatests" as a Latex command.. I was trying to type a Greek "alpha", followed by the word "tests", as appers in the current attachment. As you see, in the LyX window this looks perfectly fine.. but I still get the error.

Thank you,

Asaf

ChE · Post by **ChE** » Wed Oct 21, 2009 8:33 am

LyX can be deceiving...

(Sorry, I couldn't help myself.)

Seriously, though, if you just put a space in front of "tests", it should be fine. What happens is that the inline math display of LyX tends to have padding around it, which makes it look like you have a space, when you really don't, and should. Although, looking at your image more carefully, the space between "\alpha" and "tests" does seem to be bigger than just the inline equation padding.

Try what I said, but if that's not the problem, would you mind sending us the source code of that part?

Regards,
ChE

Post by **Stefan Kottwitz** » Wed Oct 21, 2009 10:37 am

Right, it looks like there are just spaces missing.

Stefan

assafwe · Post by **assafwe** » Wed Oct 21, 2009 5:48 pm

Hi,

-Nope, i do have a space there...

Here is the source:

\noindent We will now suggest three different procedures for constructing
two-sided confidence intervals for $\theta=E(Y).$ All three utilize
the duality between a family of level $\alpha$ tests of the hypothesis
$EX=\theta$ and a level $(1-\alpha)$ confidence procedure (Lehman,
1986), by first constructing a family of acceptance regions, and then
inverting them to obtain confidence intervals.

2. I now get another error, as you can see in the attached...

Sorry guys, and thanks again!

Asaf

ChE · Post by **ChE** » Wed Oct 21, 2009 7:20 pm

Hmmm... That code works when I use it as an ERT in LyX. Why does the second pic you posted show a different error from the first one?

Are you using any weird packages or such? What's in your preamble?
I'm running out of ideas here... :/

Regards,
ChE

assafwe · Post by **assafwe** » Wed Oct 21, 2009 9:53 pm

Hi ChE,

Well, forget about it, It seems OK now. .. Strangely, I canged a different part in the code that was suspicious to me, and exporting worked fine..

Tnx so much,

Assaf

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LyX ⇒ Undefined control sequence