[R] greek in main title
Oldradio69@aol.com
Oldradio69 at aol.com
Tue Jul 22 18:02:53 CEST 2003
Hi -- your solution looses the ability to assign the values of theta and n[i]
in the simulation... you get thta and n_i in the titles.
In a message dated 7/22/2003 10:44:59 AM Eastern Standard Time, ahmlatif at yahoo.com writes:
> Hi,
>
> change the name of function argument "theta" to
> something else say "thta" and then use the following
> ....
>
> heading <- expression(paste("Exp w/ ", theta, "=",
> thta, ", n = ", n[i]))
>
> Hope it will help...
>
> Mahbub.
>
> --- Oldradio69 at aol.com wrote:
> > Hello,
> >
> > I have written a function that demonstrates the CLT
> > by
> > generating samples following the exponential
> > distribution,
> > calculating the means, plotting the histogram, and
> > drawing
> > the limiting normal curve as an overlay. I have the
> > title
> > of each histogram state the sample size and rate
> > (1/theta)
> > for the exponential (the output is actually 4
> > histograms),
> > but I can't get the greek letter theta to appear in
> > the
> > heading. Is this possible? I can get nontext for
> > the xlab
> > and ylab pretty easily.
> >
> > Thanks, Jason
> >
> > Below is my code. Currently it just writes out
> > "theta."
> >
> > function (theta)
> > {
> > layout(matrix(c(1:4),2,2,byrow=TRUE))
> > par(bg = "cornsilk")
> > n <- c(1,10,25,50)
> > for(i in 1:4) {
> > xbar <- rep(0, 1000)
> > for (j in 1:1000)
> > xbar[j] <- mean(rexp(n[i], rate = 1/theta))
> > heading <- paste("Exp w/ theta =", theta, ", n
> > = ", n[i])
> > hist(xbar, prob = TRUE, breaks = "FD", main =
> > title(heading, font.main = 6),
> > col = "lightgray", xlab =
> > expression(bar(x)))
> > xbar <- sort(xbar)
> > points(xbar, dnorm(xbar, mean = theta, sd =
> > theta/sqrt(n[i])),
> > type = "l", col = 2)
> > }
> > }
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> >
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>
>
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