From bug-octave-request at bevo dot che dot wisc dot edu  Fri Oct  8 12:18:42 1999
Subject: Matlab-like indexing ( var(xx:end)  )
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Jean-Marc Valin <jean-marc dot valin at hermes dot usherb dot ca>
Cc: bug-octave at bevo dot che dot wisc dot edu
Date: Fri, 8 Oct 1999 12:18:43 -0500 (CDT)

On  8-Oct-1999, Jean-Marc Valin <jean-marc dot valin at hermes dot usherb dot ca> wrote:

| 
| Is there any plan to allow the use of end (as in Matlab) to
| refer to the last element of an array, as in
| 
| var2 = var1(20:end);

The following item has been in the PROJECTS file for quite a while:

    For indexing operations, allow $ to indicate the last element. For
    example, b = a (3:$, 1:$-1). This means b is a, except for its
    first 2 rows and last column. Note that $ must be able to appear
    in arbitrarily complex expressions, so copying the the current
    implementation of : won't work.

Whether the token is `end' or `$' doesn't matter much.  To be
compatible and use `end' is OK with me.

When (or if) this will actually be implemented depends on someone
doing the work.  I have no immediate plans to do it myself.

jwe



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