title: Lambert conformal conic projection not working in R using mapproj?
body: <p>This should be an easy one. </p>
  
  <pre><code>library(maps)
  map("world", projection = "mercator", wrap = TRUE)
  map("world", projection = "cylequalarea", param = 45, wrap = TRUE)
  map("world", projection = "albers", parameters = c(lat0 = 0, lat1 = 0), wrap = TRUE)
  map("world", projection = "lambert", parameters = c(lat0 = 0, lat1 = 0), wrap = TRUE)
  </code></pre>
  
  <p>The first three projections work, but the last one doesn't -- it just shows the Mercator projection. What am I doing wrong? </p>
  
  <p>I know I can use <code>spTransform</code> to actually do the projection, but I was hoping for something simpler. </p>