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
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