Crossing referencing with 'xr' not working

[Vikram Chhatre]

Hello -

I am having difficulty referring to figures and tables in an external
document using the 'xr' package.


Main document
-----------------------
\usepackage{xr}

\externaldocument[S]{../../supplementary/supp}

Where supp is the name of the external document (supp.tex).

\ref{tab:supptable1}



External Document
-------------------------

\label{tab:supptable1}



The log shows that the xr package was reading the label information
from external document and no errors were reported. I also tried
putting supp.tex and supp.aux in the current directory and updating
the path above, without any success. All I get in both cases is a
question mark in the main document.

Thanks for any input.

Vikram

[Peter Flynn]

On Fri, Jun 8, 2012 at 4:51 PM, Vikram Chhatre <cryptic...@gmail.com> wrote:

Hello -

I am having difficulty referring to figures and tables in an external
document using the 'xr' package.


Main document
-----------------------
\usepackage{xr}

\externaldocument[S]{../../supplementary/supp}

Where supp is the name of the external document (supp.tex).

\ref{tab:supptable1}

No, if you have defined the external document as "S", then references to it must be prefixed by "S-", so you need \ref{S-tab:supptable1}

This is on p.1 of the documentation for the xr packages.

///Peter

[Vikram Chhatre]

Peter,

Thanks for your reply. I thought you either had to assign a S- at
every call of the reference, or initial as an option in the preamble,
not both.

\externaldocument[S]{../supp/supp}

\ref{S tab:supptable1}

I do not want a hyphen after the S. The references should appear as:
table S1 and figure S1.

I tried the above example, but still got only question marks. Perhaps
I still don't understand what syntax is needed.

Thanks again
Vikram

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[Peter Flynn]

On Fri, Jun 8, 2012 at 8:12 PM, Vikram Chhatre <cryptic...@gmail.com> wrote:

Peter,

Thanks for your reply.  I thought you either had to assign a S- at
every call of the reference, or initial as an option in the preamble,
not both.

\externaldocument[S]{../supp/supp}

\ref{S tab:supptable1}

I'm sorry, I also misread the documenation. It would be \ref{Stab:supptable1}
 

I do not want a hyphen after the S.  The references should appear as:
table S1  and figure S1.

That's a completely different thing. That's the resolution of the reference.

The [S] is there to enforce the uniqueness of the labels, NOT to prefix the resolution value. I don't think the xr package provides any automated way to do what you seem to want.

///Peter

[Vikram Chhatre]

Hi Peter,

Now it works. Thank you for clarifying again. I read the
documentation to mean that [S] was going to be prefixed AND PRINTED to
every occurrence of an imported label/reference.

\ref{Stab:supptable1} works as it should.

Thanks again.
Vikram

[Peter Flynn]

On Fri, Jun 8, 2012 at 10:35 PM, Vikram Chhatre <cryptic...@gmail.com> wrote:

Hi Peter,

Now it works.  Thank you for clarifying again.  I read the
documentation to mean that [S] was going to be prefixed AND PRINTED to
every occurrence of an imported label/reference.

I think your idea is right: it should be printed, otherwise there is no way to distinguish a reference from one document from a  reference to another.

Perhaps you should ask David Carlisle to consider adding this...it was written in 1994.

///Peter

[Bruno Remillard]

It works with miktex. However it does not work with overleaf. It seems that all aux files are called output.aux which is the problem.