Maybe I misunderstand, but if the results cannot be reproduced, what is the 
point? I did some secret stuff (after talking to my friend the witch doctor) 
and here are my results. Some analyses preclude exact reproduction, but then 
researchers should rerun the analysis several times to provide a range or field 
of possible/probable results.

-----Original Message-----
From: Jeff Newmiller <jdnew...@dcn.davis.ca.us>
Sent: Monday, December 30, 2024 7:52 PM
To: r-help@r-project.org; Ebert,Timothy Aaron <teb...@ufl.edu>; Erin Hodgess 
<erinm.hodg...@gmail.com>; r-help@r-project.org
Subject: Re: [R] Citation for stock price data from Quantmod

[External Email]

While asking if you should document what you did and give credit where due 
seems... unnecessary (of course you should) ... I believe we are beyond the 
point where a paper alone can allow me to reproduce most relevant published 
analyses. That is, including a link to a reproducible code repository with a 
list of exact package/versions used and to the exact data used as input are 
necessary to achieve that degree of completeness. It is non-trivial even with 
tools like renv and a complete repo to document all of the decisions required 
to reproduce a published result months or years later... expecting citations 
and technical discussion alone to catch everything is IMO an unrealistic goal. 
The paper can only cover the general outline of the work, and should be 
complete enough to allow someone else to perform a validation study... most 
likely with different tools and data sets to check how robust the results are.

If the results can only be reproduced with one data source, it may not deserve 
high regard in general, and documenting that you used a narrow slice of 
information as the foundation of your conclusions might be a sort of "YMMV" 
caution to the reader.

On December 30, 2024 4:02:08 PM PST, "Ebert,Timothy Aaron" <teb...@ufl.edu> 
wrote:
>Yes, you need to cite the source of data and the method for retrieval. You 
>also need to cite programs used in manipulating the data, cleaning the data, 
>and analyzing the data. I should be able to read what you wrote, and using 
>those methods recover the data independently from you and finish all other 
>steps in the analysis. I should not have to guess.
>
>Tim
>
>-----Original Message-----
>From: R-help <r-help-boun...@r-project.org> On Behalf Of Erin Hodgess
>Sent: Monday, December 30, 2024 12:17 AM
>To: r-help@r-project.org
>Subject: [R] Citation for stock price data from Quantmod
>
>[External Email]
>
>Hello!
>
>Happy Holidays!
>
>I have a question about citing stock price data downloaded via Quantmod, 
>please.  Of course, I will cite Quantmod.  Do I also need to cite Yahoo 
>Finance as the actual source of the data, please?
>Also, I'm not sure if this is a question for the Finance sig, but thought I 
>would start here.
>
>Thank you.
>
>Erin Hodgess, PhD
>mailto: erinm.hodg...@gmail.com
>
>        [[alternative HTML version deleted]]
>
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>code.

--
Sent from my phone. Please excuse my brevity.

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