I have some slides produced in Rmarkdown. I just want the slides after the conclusion not to have numbers. I tried all the solutions that are posted in this website and similar (e.g.: \appendix \setcounter{framenumber}{2}, \pagenumbering{gobble}, etc.) but they don't work. Also this Rbeamer for back-up slides doesn't work in my case and I don't understand why.
This is my framework:
---
title: "Title"
subtitle: "Subtitle"
date: "xx/xx/2020"
output:
beamer_presentation:
theme: "Boadilla"
colortheme: "orchid"
header-includes:
- \usepackage{tikz}
- \usetikzlibrary{decorations.pathreplacing,calc,tikzmark}
- \usetikzlibrary{tikzmark,fit,shapes.geometric}
- \usepackage{lipsum}
- \usepackage{lmodern}
- \usepackage{tcolorbox}
- \usepackage{appendixnumberbeamer}
---
## Title 1
Text 1
---
## Title 2
Text 2
---
## Conclusion
concluding
---
## NO PAGE NUMBER
I don't want page numbers here
Thanks a lot!