First markdown try

First markdown

h qin

June 24, 2015

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.
When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

summary(cars)

##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

You can also embed plots, for example:

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.

R markdown, first try using the default example

I tried R markdown following Roger Peng's youtube example, but I had the following error.

output file: Preview-34861e6a55d2.knit.md
Error: unrecognized fields specified in html_dependency: attachment
Execution halted

Similar problem was online.
http://stackoverflow.com/questions/25790059/r-markdown-error-cant-produce-html-file

My Rstudio is Version 0.98.932

I first installed R3.2.1.
I then installed Rstudio 0.99.447

In Rstudio, I click "Knit-html", this time I was prompt to save a file.
Then

I clicked "Yes", and it updated many packages.

Then, I see the markdown file.

I clicked "open in browser". I can see the html file is in Download folder which I chose.

I then clikced "publish"

I chose "no"


I checked the saved html file. It use javascript and save a lot data within the file itself.