On Feb 1, 2010, at 12:40 PM, Alexander Nervedi wrote:
Hi R Graphics Gurus
I am unable to figure out this issues with unevaluated expressions.
I'm trying to create a graphic where I calculate the residual from a
regression and want to mark each residual with its observation
number. So something like
plot(0,0, type = "n", xlim = c(0,10))
for(i in 1:10){
text(i, 0, substitute(paste(epsilon[i])))
}
Does this work for you:
plot(0,0, type = "n", xlim = c(0,10))
for(i in 1:10){
text(i, 0, substitute(epsilon[i], list(i=i) ))
}
It doesn't for me, in that it doe not print the correct epsilon glyph,
but that's because my access to the Symbol font is messed up on my Mac
for a reason that is not pressing enough to warrant a question to the
appropriate help list. It does get the subscripts printing correctly
beneath empty square boxes.
except that i end up pasting \epsilon_i 10 times and not
\epsilon_1, ..., \epsilon_10. i'd be much obliged if anyone can put
me out of my misery and let me know how i am goofing up.
many thanks
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