* Requirement (the following must have been installed)

  - ruby 1.6 or later (http://www.ruby-lang.org)
  - narray 0.5.6 or later (http://www.ir.isas.ac.jp/~masa/ruby/)
  - RubyNetCDF 0.3.5 or later 
    (http://ruby.gfd-dennou.org/products/ruby-netcdf/)
  - multibitnums (URL to be announced)

* Installation

To install into the standard site-dependent library directory:

# ruby install.rb

Or, to intall into a specfied directory:

# ruby install.rb prefix

Here, prefix is in the usual sence in the unix world.
