傳說有個R，R里有個包，包的名字叫praise，會一直不停地夸贊你。

> praise()
[1] "You are sensational!"
> praise()
[1] "You are luminous!"
> praise()
[1] "You are pioneering!"
> praise()
[1] "You are riveting!"
> praise()
[1] "You are neat!"
> praise()
[1] "You are supreme!"
> praise()
[1] "You are classy!"
> praise()
[1] "You are sensational!"
> praise()
[1] "You are peachy!"

換種方式

> praise("${EXCLAMATION}! You have done this ${adverb_manner}!")
[1] "WOWIE! You have done this politely!"> praise("${EXCLAMATION}! You have done this ${adverb_manner}!")
[1] "HURRAH! You have done this gracefully!"> praise("${EXCLAMATION}! You have done this ${adverb_manner}!")
[1] "AHHH! You have done this fondly!"

回想剛學R的時候，總記不住，偶然發現有CheetSheet，就打印出來。聽講座時帶著，沒睡著時看一下；平常遇到問題也看一下。簡單幾頁，提供了很大幫助，后來翻爛了，也就忘記這個東西了。

今天突然想起，搜索了下，又找到了這些密密麻麻的小字，找回我們的過去，分享與此。大部分要學的東西都會有類似的CheetSheet，剛學時，拿過來多看看，越看越熟，也就多會一些了。

惦記是個好東西。

ggplot2 cheetsheet

R reference card

https://cran.r-project.org/doc/contrib/Baggott-refcard-v2.pdf

https://www.rstudio.com/wp-content/uploads/2015/08/ggplot2-cheatsheet.pdf