Add doi badge to README

aphalo · Jun 25, 2024 · f60b0df · f60b0df
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diff --git a/README.Rmd b/README.Rmd
@@ -23,6 +23,7 @@ version](https://www.r-pkg.org/badges/version/ggpp)](https://cran.r-project.org/
 [![R-CMD-check](https://github.com/aphalo/ggpp/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/aphalo/ggpp/actions/workflows/R-CMD-check.yaml)
 [![Coverage](https://raw.githubusercontent.com/aphalo/ggpp/_xml_coverage_reports/data/master/badge.svg)](https://raw.githubusercontent.com/aphalo/ggpp/_xml_coverage_reports/data/master/coverage.xml)
 <a href="https://docs.r4photobiology.info/ggpp/"><img src="https://img.shields.io/badge/documentation-ggpp-informational.svg" alt="" /></a>
+[![](https://img.shields.io/badge/doi-10.32614/CRAN.package.ggpp-black.svg)](https://doi.org/10.32614/CRAN.package.ggpp)
 <!-- badges: end -->
 
 ## Purpose
@@ -332,7 +333,7 @@ Please report bugs and request new features at
 If you use this package to produce scientific or commercial
 publications, please cite according to:
 
-```{r, eval=FALSE}
+```{r}
 citation("ggpp")
 ```
 

diff --git a/README.md b/README.md
@@ -12,6 +12,7 @@ badge](https://aphalo.r-universe.dev/badges/ggpp)](https://aphalo.r-universe.dev
 [![R-CMD-check](https://github.com/aphalo/ggpp/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/aphalo/ggpp/actions/workflows/R-CMD-check.yaml)
 [![Coverage](https://raw.githubusercontent.com/aphalo/ggpp/_xml_coverage_reports/data/master/badge.svg)](https://raw.githubusercontent.com/aphalo/ggpp/_xml_coverage_reports/data/master/coverage.xml)
 <a href="https://docs.r4photobiology.info/ggpp/"><img src="https://img.shields.io/badge/documentation-ggpp-informational.svg" alt="" /></a>
+[![](https://img.shields.io/badge/doi-10.32614/CRAN.package.ggpp-black.svg)](https://doi.org/10.32614/CRAN.package.ggpp)
 <!-- badges: end -->
 
 ## Purpose
@@ -350,6 +351,22 @@ publications, please cite according to:
 
 ``` r
 citation("ggpp")
+#> To cite package 'ggpp' in publications use:
+#> 
+#>   Aphalo P (2024). _ggpp: Grammar Extensions to 'ggplot2'_. R package
+#>   version 0.5.7.9000, https://github.com/aphalo/ggpp,
+#>   <https://docs.r4photobiology.info/ggpp/>.
+#> 
+#> A BibTeX entry for LaTeX users is
+#> 
+#>   @Manual{,
+#>     title = {ggpp: Grammar Extensions to 'ggplot2'},
+#>     author = {Pedro J. Aphalo},
+#>     year = {2024},
+#>     note = {R package version 0.5.7.9000, 
+#> https://github.com/aphalo/ggpp},
+#>     url = {https://docs.r4photobiology.info/ggpp/},
+#>   }
 ```
 
 ## Acknowledgements