[R] Analysing Character Strings for subsequent frequency analysis

[Gabor Grothendieck]

On Thu, Dec 30, 2010 at 1:03 PM, bob stoner <bob.stoner at btinternet.com> wrote:
> Hi
> I'm trying to get to grips with R and establish R as a teaching medium in my
> secondary school. I would like to use R to analyse text so I can produce
> frequency analysis of the text for subsequent examination of ciphers. I can
> produce code in VBA but I am struggling when writing in R to examine each
> character. There must be a clear method using the vectorised format of R.
> Furthermore, how do you substr a text string and reference each letter? I
> can use nchar to see how many letters per string but not to select each
> letter. I would prefer to remain in R and not deviate to Python etc as
> getting R onto the school mainframe has been a long journey...
> Many thanks
>
> Bob Stoner
> Sleaford, Lincolnshire, UK

Google for:

   CRAN Task View on Natural Language Processing

for an overview of the addon packages for analyzing text.

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