Thunderbird conversation mode

 Just discovered Thunderbird conversations extension that displays Thunderbird emails like Gmail. Very cool. 

Convert email to event or task

 I just found out that Thunderbird can convert an email into an event or task with deadline. This is extremely useful for me. 

Using tikzDevice in R Markdown document

 When I was LaTeX user in the past, I like TikZ and tikzDevice a lot. After switching to R Markdown, however, I gradually forgot about them. Today I spent some time figuring out how to make TikZ and tikzDevice work for R Markdown. Here is some simple code: 

---
title: "Using tikzDevice"
output: 
  pdf_document: 
    latex_engine: xelatex
    keep_tex: yes
    includes:
      in_header: setup.tex
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
```
```{r, fig.cap="Without tikzDevice"}
x<- rnorm(10)
y<-x +rnorm(5,sd=0.25)
model <- lm(y~x)
rsq<- summary(model)$r.squared
rsq<- signif(rsq,4)
plot(x, y, main='Hello \\LaTeX!')
abline(model,col='red')
mtext(paste("Linear model:$R^{2}=",
            rsq, "$"), line=0.5)
legend('bottomright',legend=paste("$y = ",round(coef(model)[2],3),'x +',round(coef(model)[1],3),'$',sep =''), bty ='n')
```
```{r, echo=FALSE}
library(tikzDevice)
```
```{r, echo=FALSE, message=FALSE, results='hide'}
tikz('latexEx.tex',width=7,height=4.5)
x<- rnorm(10)
y<-x +rnorm(5,sd=0.25)
model <- lm(y~x)
rsq<- summary(model)$r.squared
rsq<- signif(rsq,4)
plot(x, y, main='Hello \\LaTeX!')
abline(model,col='red')
mtext(paste("Linear model:$R^{2}=",
            rsq, "$"), line=0.5)
legend('bottomright',legend=paste("$y = ",round(coef(model)[2],3),'x +',round(coef(model)[1],3),'$',sep =''), bty ='n')
dev.off()
```
```{r, fig.cap="With tikzDevice", message=FALSE, engine='tikz'}
\input{latexEx.tex}

Getting Started With Pacman Commands in Arch-based Linux Distributions

 Useful tips here.

Why you need to drop ifconfig for ip

 Useful tip here.

ggfittext

ggfittext provides some useful text displaying capability to ggplot2, including a new geom called geom_bar_text. 

BayesPostEst

 Finally a modern Bayesian implementation of the Zelig package here.

Estimating and testing GLMs with `emmeans`

This post shows how to use emmeans package to generate first difference with confidence intervals. 

Getting past the little hiccups to getting plotly animations into slides

 Very helpful post regarding how to use plotly graph in xaringan slides.