Re: prefer_zero_one_indexing dissapeared from 2.0 to 2.1: how can I livewithout it?

[Etienne Grossmann]

octave:33> a = [1, 2, 3, 4]
a =

   1   2   3   4

octave:34> a([0,1,1,1])
error: invalid vector index = 0
octave:34> a(!![0,1,1,1])
ans =

   2   3   4

octave:35> version
ans = 2.9.8

  This also works.

  Hth,

  Etienne

On Fri, Oct 06, 2006 at 01:49:33PM +0200, Miquel Cabanas wrote:
# On Fri, 2006-10-06 at 12:06 +0200, TEJEDA HERNANDEZ, CESAR wrote:
# >
# > I have a program that uses that feature, and it seems for me that this
# > feature of doing a Boolean indexing:
# >
# >           a = [1, 2, 3, 4]
# >
# >           a ([0, 1, 1, 1])
# >
# >      results in the matrix `[ 2, 3, 4 ]'. 
# > 
# 
# try,
# 
#    a = [1 2 3 4];
#    b = [0 1 1 1];
# 
# then either of
# 
#    find (a.*b > 0)
# 
# or
# 
#    a (find (b == 1))
# 
# or
# 
#    a (find (b))
# 
# will return
# 
#    [2 3 4]
# 
# 
# 
# Miquel
# 
# 
# 
# 
# _______________________________________________
# Help-octave mailing list
# address@hidden
# https://www.cae.wisc.edu/mailman/listinfo/help-octave

-- 
Etienne Grossmann ------ http://www.isr.ist.utl.pt/~etienne