[Pkg-octave-devel] Bug#510825: octave3.0-htmldoc: Switch ">" and "<" in third argument to t_test_2()

[Kingsley G. Morse Jr.]

Package: octave3.0-htmldoc
Version: 1:3.0.1-6lenny1
Severity: normal

Thanks for maintaining octave.

I just used it gain to a statistical insight.

However, it seems to me that the t_test_2()
function, or its documentation, has reversed the
meanings of ">" and "<" in its third argument,
named "alt".

file:///usr/share/doc/octave3.0-htmldoc/interpreter/Tests.html
says

    "If alt is ">", the one-sided alternative mean
    (x) > mean (y) is used."

But, it seems to me that "<" is used.

Here's how I tested it...

    octave:1> x = [ 0, 1, 2 ]
    x =

      0  1  2

    octave:2> y = [ 100, 102, 103 ]
    y =

      100  102  103

    octave:3> t_test_2(x,y,">");
      pval: 1

I expected the pval to be close to 0.

Thanks,
Kingsley

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.25-2-686 (SMP w/2 CPU cores)
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash

octave3.0-htmldoc depends on no packages.

octave3.0-htmldoc recommends no packages.

Versions of packages octave3.0-htmldoc suggests:
ii  chimera2 [www-browse 2.0a19-5            Web browser for X
ii  dillo [www-browser]  0.8.3-1             GTK-based web browser
ii  elinks [www-browser] 0.4.2.99-1          Character mode WWW/FTP browser
ii  emacs21 [www-browser 21.2-1              The GNU Emacs editor.
ii  iceweasel [www-brows 3.0.5-1             lightweight web browser based on M
ii  konqueror [www-brows 4:3.5.9.dfsg.1-2+b1 KDE's advanced file manager, web b
ii  links [www-browser]  0.99-1              Character mode WWW browser
ii  lynx [www-browser]   2.8.5-1             Text-mode WWW Browser
ii  octave3.0            1:3.0.3-1           GNU Octave language for numerical 
ii  w3m [www-browser]    0.5.2-2+b1          WWW browsable pager with excellent

-- no debconf information