title: Line thickness in plot function in R
body: <p>I wish to increase the line thickness in a plot I have created but each time I specify <code>lwd = 2</code> I receive an error referring to multiple arguments for lwd but the data still plots but there's no border, axis title or scales just the time series.</p>
  
  <p>Clearly there's some other internal conflict with regards the line width but I am unsure as to what the exact cause is.  </p>
  
  <blockquote>
    <p>Error in axis(1, at = xycoords$x[ep], labels = names(ep), las = 1, lwd
    = 1,  :    formal argument "lwd" matched by multiple actual arguments</p>
  </blockquote>
  
  <p>Once I remove the lwd reference the data plots as I expected but the line thickness is not what I want. How can I overcome this problem?</p>
  
  <p>This is the piece of code which is causing the problem:</p>
  
  <pre><code>plot(x = wideRawXTS[,"DO0182U09A3"],
       xlab = "Time", 
       ylab = "RTWP Levels (dBm)", 
       main = "RTWP Vs. Time", 
       ylim = c(-110,-70), 
       major.ticks = "days", 
       minor.ticks = FALSE,
       col = "#1b9e77",
       lwd = 2)
  </code></pre>