On 04/07/2018 3:23 PM, Joris Meys wrote:
I just took a look at your repo, and two remarks:
- you use roxygen, and used both @export and @S3method. The latter one is
deprecated, so you should use only @export, or @method (see eg Hadley's
answer here : https://github.com/klutometis/roxygen/issues/741 )
- You're using some code in attributes.R that should generate all the
getters and setters automatically, but it looks as if these objects aren't
generated in the right order/environment/... to be registered correctly.
The part where I get confused, is the following. After installing:
ht <- huxtable(a = 1:3, b = 1:3)
align(ht)
Error in UseMethod("align") :
no applicable method for 'align' applied to an object of class
"c('huxtable', 'data.frame')"
methods(align)
[1] align.huxtable*
see '?methods' for accessing help and source code
getFromNamespace("align.huxtable","huxtable")
function (ht)
attr(ht, "align")
<bytecode: 0x0000000015f8bb88>
<environment: 0x0000000016840c18>
The last line is what bothers me. That should be
<environment:namespace:huxtable>, like this:
environment(huxtable)
<environment: namespace:huxtable>
So you generate the functions, they somehow get registered but they get
created in the wrong environment as far as I can tell. That's where I would
start looking.
That shouldn't matter. That function was created in a local environment
whose parent is <environment: namespace:huxtable> (probably by the
huxtable:::make_setter_getters function, but I didn't check).
Duncan Murdoch
CHeers
Joris
On Wed, Jul 4, 2018 at 8:12 PM, David Hugh-Jones <davidhughjo...@gmail.com>
wrote:
I figured that. Actually I just tried this. I now get the interesting
result that all calls to a generic fail with the UseMethod error...?
On Wed, 4 Jul 2018 at 16:12, Joris Meys <joris.m...@ugent.be> wrote:
On Wed, Jul 4, 2018 at 4:22 PM, Hadley Wickham <h.wick...@gmail.com>
wrote:
I don't think it's related to the error, but you shouldn't be exporting
this:
export("align<-.huxtable")
You should generally only export the method.
Hadley means to say that you should generally only export the generic,
not the individual methods.
More information here:
https://cran.r-project.org/doc/manuals/R-exts.html#Registering-S3-methods
Cheers
Joris
--
Joris Meys
Statistical consultant
Department of Data Analysis and Mathematical Modelling
Ghent University
Coupure Links 653, B-9000 Gent (Belgium)
<https://maps.google.com/?q=Coupure+links+653,%C2%A0B-9000+Gent,%C2%A0Belgium&entry=gmail&source=g>
tel: +32 (0)9 264 61 79
-----------
Biowiskundedagen 2017-2018
http://www.biowiskundedagen.ugent.be/
-------------------------------
Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php
--
Sent from Gmail Mobile
______________________________________________
R-package-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-package-devel
