[R-pkg-devel] CRAN pre-test failed on NOTE "no visible binding for global variable"

[Iñaki Ucar]

raúl

On Tue, 2 Jul 2019 at 14:18, Berlanga, Antonio J
<a.berlanga using imperial.ac.uk> wrote:
>
> Hi r-package-devel,
>
> I've submitted my first package but it failed the CRAN pre-tests on
> NOTES. I got:
>
> - my email
>
> - an extra non-standard file (which I have now added to .Rbuildignore)
>
> - NOTEs on "no visible global function definition"
>
> The first two I assume are harmless. The third I do not know how to fix
> (possible solutions below). Can it be ignored and suggest the fail was a
> false-positive?
>
> The third NOTE is:
>
> #######
>
> Flavor: r-devel-linux-x86_64-debian-gcc, r-devel-windows-ix86+x86_64
> Check: R code for possible problems, Result: NOTE
>   epi_clean_count_classes: no visible global function definition for
>     '%>%'
>   epi_clean_count_classes: no visible binding for global variable '.'
>   epi_plot_heatmap: no visible binding for global variable 'Var1'
>   epi_plot_heatmap: no visible binding for global variable 'Var2'
>   epi_plot_heatmap: no visible binding for global variable 'value'
>   epi_plot_heatmap_triangle: no visible binding for global variable
>     'Var1'
>   epi_plot_heatmap_triangle: no visible binding for global variable
>     'Var2'
>   epi_plot_heatmap_triangle: no visible binding for global variable
>     'value'
>   epi_plot_heatmap_triangle: no visible global function definition for
>     'element_text'
>   epi_plot_heatmap_triangle: no visible global function definition for
>     'coord_fixed'
>   epi_plot_heatmap_triangle: no visible global function definition for
>     'element_blank'
>   epi_plot_heatmap_triangle: no visible global function definition for
>     'element_rect'
>   epi_plot_heatmap_triangle: no visible global function definition for
>     'guide_colorbar'
>   epi_stats_summary: no visible global function definition for '%>%'
>   epi_stats_tidy: no visible global function definition for '%>%'
>   epi_stats_tidy: no visible binding for global variable '.'
>   epi_stats_tidy: no visible binding for global variable 'x'
>   epi_stats_tidy: no visible binding for global variable 'n'
>   epi_stats_tidy: no visible binding for global variable 'id'
>   Undefined global functions or variables:
>     %>% . Var1 Var2 coord_fixed element_blank element_rect element_text
>     guide_colorbar id n value x
> #######
>
>
> Solutions seem to cause errors elsewhere and there does not appear to be
> an ideal one unfortunately. It seems to me that adding a file in the
> directory 'R' containing eg:
>
> #######
>
> if(getRversion() >= "2.15.1") utils::globalVariables(c("."))
>
> #######
>
> is one of the preferred ways. This seems far from ideal though.

If you use NSE in your package, this is the best solution. You may
also switch to SE.

Iñaki