[R-pkg-devel] Warning: S4 exports specified in 'NAMESPACE' but not defined in package

Good morning,


I had a quick look at the source file on CRAN, and I don't see any evidence that you're using S4 classes...? Indeed, at the end of your function 'bujar', you are defining the class of the results using "class(x) <- value", which is an S3 idiom.


If indeed you're using S3 instead of S4, then the correct section of WRE is 1.5.2, and therefore you'll need to clean up your NAMESPACE.


Best,


Max Turgeon
Assistant Professor
Department of Statistics
Department of Computer Science
University of Manitoba
maxturgeon.ca<http://maxturgeon.ca>

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Caution: This message was sent from outside the University of Manitoba.
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Dear All,

I received warnings regarding a package:

https://cran.r-project.org/web/checks/check_results_bujar.html

The warning still occurred after I changed export(bujar, gcv.enet) to export(bujar) in NAMESPACE. The function bujar was defined in the package, so I probably missed something in Sec 1.5.6 in Writing R Extensions.

Could somebody kindly advise how to address the warning?

Thanks,

Zhu Wang

        [[alternative HTML version deleted]]

______________________________________________
R-package-devel at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-package-devel

Thanks Max for the very helpful reply.

Best,

Zhu

From: Max Turgeon <Max.Turgeon at umanitoba.ca>
Sent: Monday, June 1, 2020 11:53 AM
To: Wang, Zhu <wangz1 at uthscsa.edu>; R-package-devel at r-project.org
Subject: Re: Warning: S4 exports specified in 'NAMESPACE' but not defined in package


Good morning,



I had a quick look at the source file on CRAN, and I don't see any evidence that you're using S4 classes...? Indeed, at the end of your function 'bujar', you are defining the class of the results using "class(x) <- value", which is an S3 idiom.



If indeed you're using S3 instead of S4, then the correct section of WRE is 1.5.2, and therefore you'll need to clean up your NAMESPACE.



Best,


Max Turgeon
Assistant Professor
Department of Statistics
Department of Computer Science
University of Manitoba
maxturgeon.ca<http://maxturgeon.ca>

********************************************************
Caution: This message was sent from outside the University of Manitoba.
********************************************************

Dear All,

I received warnings regarding a package:

https://cran.r-project.org/web/checks/check_results_bujar.html

The warning still occurred after I changed export(bujar, gcv.enet) to export(bujar) in NAMESPACE. The function bujar was defined in the package, so I probably missed something in Sec 1.5.6 in Writing R Extensions.

Could somebody kindly advise how to address the warning?

Thanks,

Zhu Wang

        [[alternative HTML version deleted]]

______________________________________________
R-package-devel at r-project.org<mailto:R-package-devel at r-project.org> mailing list
https://stat.ethz.ch/mailman/listinfo/r-package-devel

This is a new check in R-devel. The NEWS say:

R CMD check etc now warn when a package exports non-existing S4 classes or methods, also in case of no "methods" presence

In your case, the NAMESPACE contains

exportClasses("bujar")
exportMethods("show")

but the package neither defines an S4 class "bujar" nor methods for the
S4 generic "show". You should remove these two lines from your NAMESPACE.

Best regards,

	Sebastian Meyer


Am 01.06.20 um 18:34 schrieb Wang, Zhu:

Dear All,

I received warnings regarding a package:

https://cran.r-project.org/web/checks/check_results_bujar.html

The warning still occurred after I changed export(bujar, gcv.enet) to export(bujar) in NAMESPACE. The function bujar was defined in the package, so I probably missed something in Sec 1.5.6 in Writing R Extensions.

Could somebody kindly advise how to address the warning?

Thanks,

Zhu Wang

	[[alternative HTML version deleted]]

______________________________________________
R-package-devel at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-package-devel

Thanks Sebastian, and I appreciate the suggestion.
Best,
Zhu

-----Original Message-----
From: R-package-devel <r-package-devel-bounces at r-project.org> On Behalf Of Sebastian Meyer
Sent: Monday, June 1, 2020 1:53 PM
To: r-package-devel at r-project.org
Subject: Re: [R-pkg-devel] Warning: S4 exports specified in 'NAMESPACE' but not defined in package

This is a new check in R-devel. The NEWS say:

R CMD check etc now warn when a package exports non-existing S4 
classes or methods, also in case of no "methods" presence

In your case, the NAMESPACE contains

exportClasses("bujar")
exportMethods("show")

but the package neither defines an S4 class "bujar" nor methods for the
S4 generic "show". You should remove these two lines from your NAMESPACE.

Best regards,

	Sebastian Meyer


Am 01.06.20 um 18:34 schrieb Wang, Zhu:

Dear All,

I received warnings regarding a package:

https://cran.r-project.org/web/checks/check_results_bujar.html

The warning still occurred after I changed export(bujar, gcv.enet) to export(bujar) in NAMESPACE. The function bujar was defined in the package, so I probably missed something in Sec 1.5.6 in Writing R Extensions.

Could somebody kindly advise how to address the warning?

Thanks,

Zhu Wang

	[[alternative HTML version deleted]]

______________________________________________
R-package-devel at r-project.org mailing list 
https://stat.ethz.ch/mailman/listinfo/r-package-devel

______________________________________________
R-package-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel