Hi, I'm having a little issue with \Sexpr{bla} relating to the number of digits it
is using to print its output. I understand that what \Sexpr{bla} does is parsing 'bla'
inside R and then returns it coerced into a character string. The problem I'm having
is that I'm losing control over the number of digits it's using to print it's output.
For example, let's take:
> ex <- c(10,2,3,4,24)
> options(digits=2)
> sd(ex)
[1] 9.2
> options(digits=22)
> sd(ex)
[1] 9.154233993076646
When I do a \Sexpr{sd(ex)} what it does is as.character(sd(ex)), which doesn't care
about the "options(digits=n)" setting. So in my .tex output instead of getting
something like 9.2 I always get a representation in 20 digits or so, as in [1]
9.154233993076646.
I have tried using \Sexpr{options(digits=2),sd(ex)}, but to no effect. Apparently
'options(digits)' has no effect on the output of 'as.character', which is used in the
\Sexpr implementation.
> options(digits=2)
> as.character(sd(ex))
[1] "9.15423399307665"
What I tried then was:
> options(digits=2)
> as.character(print(sd(ex)))
[1] 9.2
Which works inside R, but when I to that inside an \Sexpr
(\Sexpr{options(digits=2);print(sd(ex))} it prints the full [1] "9.15423399307665".
Anyone has any ideas?
Thank you,
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