Draw a word cloud from the abstracts...

This bit of R script seems to work:

# make a word cloud of these abstracts
install.packages("tm")
install.packages("wordcloud")
library("tm")
library("wordcloud")

# combine the abs object into one string of words using the paste() function
# I've done this with a loop but I'm sure I could do it with an apply function
for (i in  1:length(abs)){
  abs.1 <- paste(abs.1, abs[i])
}

wordcloud(abs.1,
          max.words=100,
          random.order=FALSE, 
          rot.per=0.35, 
          use.r.layout=FALSE, 
          colors=brewer.pal(8, "Dark2"))

Here is the output:

It's pretty much what I expect so that's good news.
There are some words that could be removed but generally it's a good start, I think.

This method could be applied to a larger data set, I think.
IMPORTANTLY there are warnings. Some words not added because they 'won't fit on the page'. Need to be careful here.

I think it will be worthwhile to look at the frequency of the words.