Hi:

Try this:
plot(ts(rnorm(100), start = 2004, freq = 12), xaxt = 'n', yaxt = 'n',
      xlab = '', ylab = '')
axis(1, at = c(2004:2012), cex.axis = 0.7)
axis(2, cex.axis = 0.7)
title(xlab = 'My X lab', ylab = 'RQI', cex.lab = 0.1)

The illegible dots in the region where the axis labels would normally be is
the consequence of cex.lab = 0.1 :)

This appears to be a consequence of plotting a time series with plot.ts().
In a basic scatterplot, such as
plot(1:10, 1:10, cex.axis = 0.7, cex.lab = 0.5)

the cex arguments for both axis and lab are respected.

HTH,
Dennis

On Thu, Mar 17, 2011 at 4:37 PM, Axel Urbiz <axel.urbiz@gmail.com> wrote:

>  Dear List,
>
> This is an embarrassing question, but I can seem to make this work…How do I
> change the font size on the xlab and on the numbers shown in the x-axis on
> the time series plot below. The arguments cex.lab and cex.axis do not seem
> to be 'passing' to the plot function.
>
> plot(ts(rnorm(100), start=2004, freq=12),
>      ylab="RQI", xlab="My X lab", col="black", cex.lab=0.1, cex.axis=0.7)
> Thanks,
> Axel.
>
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>
>
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