Input a data file?



Hello All, I am new to maxima and would like to read a data file to work with
records which typically look like 

A 65 0 0 75 
B 10 55 60 0 
etc

I want to be able to find average values for rows and columns separately for the
letter entry and for the entire file. I have seen information in the list
archives refering to numericalio.lisp but do not know how to use it and assume
it is not in the version of maxima that I have:

bob@mymachine:~$ xmaxima --version
GCL (GNU Common Lisp)  2.6.2 CLtL1   Jun 29 2004 18:53:13
bob@mymachine:~$ maxima --version
Maxima 5.9.0

I take it that numericalio.lisp is not in this version since
load("numericalio.lisp")$ produces:

Could not find `numericalio.lisp' using paths in 

FILE_SEARCH_MAXIMA,FILE_SEARCH_LISP (combined values: 

[/home/bob/.maxima/###.{mac,mc}, /usr/share/maxima/5.9.0/{share,share/algebra,#

share/calculus,share/combinatorics,share/contrib,share/diffequations,share/gra#

phics,share/integequations,share/integration,share/macro,share/matrix,share/mi#

sc,share/numeric,share/physics,share/simplification,share/specfunctions,share/#

sym,share/tensor,share/trigonometry,share/utils,share/vector}/###.{mac,mc}, 

/home/bob/.maxima/###.{o,lisp,lsp}, /usr/share/maxima/5.9.0/{share,share/algeb#

ra,share/calculus,share/combinatorics,share/contrib,share/diffequations,share/#

graphics,share/integequations,share/integration,share/macro,share/matrix,share#

/misc,share/numeric,share/physics,share/simplification,share/specfunctions,sha#

re/sym,share/tensor,share/trigonometry,share/utils,share/vector}/###.{o,lisp,l#

sp}, /usr/share/maxima/5.9.0/src/###.{o,lisp,lsp}] )
 -- an error.  Quitting.  To debug this try DEBUGMODE(TRUE);)



Where can I get the version of numericalio.lisp I need  and is there
documentation on its use?

I am using Debian Sid with linux kernel version 2.6.5-1-k7.

Thanks for the help, Bob


--
Dr. Robert J. Jerrard, Professor of Mathematics,
Concordia University College of Alberta,
7128 Ada Blvd., Edmonton, Alberta, T5B 4E4, Canada.
Phone: (780) 479-9291, Fax: (780) 474-1933.