8.68.3 Can you answer these questions?

8.68.3.1 I want to add bar values to the bar but I can't, xtick labels are showing but not the bar values?Please help

https://tex.stackexchange.com/landing/r/digest?cta=question&id=661847

\documentclass{article} 
\usepackage{pgfplots, pgfplotstable} 
\pgfplotsset{compat=1.17} 
\usetikzlibrary{patterns} 
\begin{document} 
\begin{figure} 
\caption{Test Caption} 
\centering 
\begin{... 
[pgfplots] [bar-chart]
 

asked by Muhammad Habib https://tex.stackexchange.com/landing/r/digest?cta=user&id=282959 Score of 1

answered by TorbjA~,rn T. https://tex.stackexchange.com/landing/r/digest?cta=user&id=586 Score of 0

8.68.3.2 Drawing a simple Markov chain in a "triangle inequality" configuration

https://tex.stackexchange.com/landing/r/digest?cta=question&id=662053

I'm trying to use Tikz to graph a simple Markov chain with three nodes. The first node is labelled s = 1, the second node is labelled s = 2, and the third node is labelled s = 3. All are connected via ... 
[tikz-pgf]
 

asked by The Pointer https://tex.stackexchange.com/landing/r/digest?cta=user&id=115597 Score of 1

8.68.3.3 biblatex: DOI with special characters leading to invalid URLs

https://tex.stackexchange.com/landing/r/digest?cta=question&id=662224

This question is very similar to 
Special characters in DOI leading to invalid URLs 
but the solution found in the above Q&A doesn't work with biblatex-chicago. 
Specifically, I have to deal with ... 
[urls] [biblatex-chicago]
 

asked by Ryo https://tex.stackexchange.com/landing/r/digest?cta=user&id=44271 Score of 1

answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 Score of 0