[R] variable value in mathplot

[Emmanuel Paradis]

At 11:36 29/08/00 +0100, you wrote:
>I'm putting a title over different plots, where 'that'
>varies. How do I make the value appear? Example:
>
>that <- 1
>plot(1:10)
>title(expression(paste(hat(theta),'= ',that)))
>

I think you can use substitute(). For instance, I used this to indicate the
R-squared value on a regression plot:

text(5, 0.6, as.expression(substitute(R^2 == r, list(r=round(R2.the,3)))))

where R2.the was computed a few lines above. In your case maybe something
like:

title(as.expression(substitute(hat(theta) == Unknown, list(Unknown=that))))

should do the trick.


Emmanuel Paradis
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