New subject: [Gretl-users] vertical matrix concatenation (was matrix declaration error)

Tuesday, 30 January 2007

On Tue, 30 Jan 2007, Riccardo (Jack) Lucchetti wrote:

...
 X = (a ~ b') ~' ( c ~' d)

 and

 X = (a ~' b') ~' ( c' ~ d)

 are not immediate to tell apart. 
Yikes, no, I don't like that.

...
 Hence, my counter-proposal (which, I admit, does have drawbacks, 
 but is still preferable IMHO): use "|" for vertical 
 concatenation and switch to "&&" and "||" for logical
operators. 
 It will break existing syntax, but it'd be better in the long 
 run. 
That does make sense, but I'm a bit reluctant to change the 
meaning of logical "&" and "|" right now -- though we could do 
that later with fair warning.

How about '#' for now?  It's not pretty (or standard), but it 
shouldn't collide with anything and is visually distinctive.

Allin

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

Re: [Gretl-users] vertical matrix concatenation (was matrix declaration error)