Help installing pgplot....

[Kari]

I know I'm missing something very obvious...I'm trying to get pgplot  
installed on my mac.  I've just installed macports v. 1.5, and  
completed the self-update.

Now the directions for installing pgplot list the following:

cd /opt/local/bin/portslocation/dports/pgplot
sudo port install

However, I'm missing the directory!!

Obviously, I missed a step, but could someone please let me know what  
it was?
Thanks!