title: R: make the text bold for the legend and the xlab & ylab parameters in a plot?
body: <p>I must make all of the text in my plot bold.</p>
  
  <p>I am plotting densities using this:</p>
  
  <pre><code>par(mfrow=c(1,1),family="serif")
  
  plot(density(rxyTop30),col="green",lty=1,lwd=3,bty="l",main="",
  xlab=expression(paste(R[xy])),xlim=c(0.0,0.5),ylim=c(0,12),font=2)
   lines(density(jfTop30),col="blue",lty=1,lwd=3)
    legend("topright",c(expression(paste(R[xy]," with 30 ancestors with most 
    progeny"),paste(beta," (",alpha," = 0.96",", ",beta, " = 8.031)"))),
    lwd=c(3,3),lty=c(1,1),col=c("green","blue"),bty="n")
  </code></pre>
  
  <p>I tried inserting <code>font=2</code> in different places within the code. It only made the tick numbers bold on each axis.</p>