[newbie-question] How to import a datafile for lsquares
Subject: [newbie-question] How to import a datafile for lsquares
From: Robert Dodier
Date: Fri, 19 Jan 2007 08:57:19 -0700
On 1/19/07, Hugo Coolens <coolens at kahosl.be> wrote:
> I already found in the archives that regression analysis can be performed
> by means of the lsquares package. Can anyone tell me how to import the
> datafile in maxima (preferably without the need of another package)?
I think what you want is read_matrix, in the numericalio package.
So you have to enter load(numericalio) before calling read_matrix.
(%i8) ? read_matrix
-- Function: read_matrix (<file_name>)
-- Function: read_matrix (<file_name>, <separator_flag>)
Reads the file <file_name> and returns its entire content as a
matrix. If <separator_flag> is not specified, the file is assumed
space-delimited.
`read_matrix' infers the size of the matrix from the input data.
Each line of the file becomes one row of the matrix. If some
lines have different lengths, `read_matrix' complains.
Hope this helps,
Robert Dodier