[R] don't display rulers in image() command and script file input

[Ernie Adorio]

Dear R experts,

1. How can I turn off the display of rulers in image() command?

2. Rather than typing my commands at the command line, how can I  input a file 
contents aside from doing a copy and paste operation?

Thanks in advance,

Ernesto Adorio
Math Department
University of the Philippines
Diliman