bugGNU Octave - Bugs: bug #63561, [octave forge] (statistics)...

 
 

bug #63561: [octave forge] (statistics) "unusable help text" error in chi2gof on installation

Submitter:  Jim Van Zandt <vanzandtj>
Submitted:  Thu 22 Dec 2022 06:58:34 PM UTC
 
Category:  Octave Forge Package Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Unexpected Error or Warning
Status:  None Assigned to:  None
Originator Name:  James R Van Zandt Open/Closed:  * Open
Release:  * 7.3.0 Operating System:  * Mac OS
Fixed Release:  None Planned Release:  None
* Mandatory Fields

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Thu 22 Dec 2022 07:15:24 PM UTC, comment #1: 

What is texinfo version on your computer?
("$ texi2any --version")

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Thu 22 Dec 2022 06:58:34 PM UTC, original submission:  

I have a Mac running macOS Big Sur (Version 11.7.2)

I have:
$ octave
GNU Octave, version 7.3.0
Copyright (C) 1993-2022 The Octave Project Developers.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type 'warranty'.

Octave was configured for "x86_64-apple-darwin20.6.0".

I installed the statistics package:

octave:2> pkg install -forge statistics
...
octave-help-8AC2XY:141: misplaced {
octave-help-8AC2XY:141: misplaced }
octave-help-8AC2XY:141: misplaced {
octave-help-8AC2XY:141: misplaced }
warning: doc_cache_create: unusable help text found in file 'chi2gof'
warning: called from
    doc_cache_create>handle_function at line 98 column 5
    doc_cache_create>create_cache at line 118 column 36
    gen_doc_cache_in_dir>@<anonymous> at line 150 column 16
    doc_cache_create>gen_doc_cache_in_dir at line 151 column 9
    doc_cache_create at line 62 column 12
    install>generate_lookfor_cache at line 840 column 5
    install at line 241 column 7
    pkg at line 612 column 9
...

After installation, asking for help yields the same error message:

octave:8> which chi2gof
'chi2gof' is a function from the file /Users/jrv/.local/share/octave/api-v57/packages/statistics-1.5.2/chi2gof.m
octave:9> help chi2gof
octave-help-DDTlVM:141: misplaced {
octave-help-DDTlVM:141: misplaced }
octave-help-DDTlVM:141: misplaced {
octave-help-DDTlVM:141: misplaced }
warning: help: Texinfo formatting filter exited abnormally; raw Texinfo source of help text follows...
'chi2gof' is a function from the file /Users/jrv/.local/share/octave/api-v57/packages/statistics-1.5.2/chi2gof.m

 -- Function File: H = chi2gof (X)
 -- Function File: [H, P] = chi2gof (X)
 -- Function File: [P, H, STATS] = chi2gof (X)
 -- Function File: [...] = chi2gof (X, NAME1, VALUE1, ...)

     Chi-square goodness-of-fit test.

     ‘chi2gof’ performs a chi-square goodness-of-fit test for discrete
     or continuous distributions.  The test is performed by grouping the
     data into bins, calculating the observed and expected counts for
...

chi2gof is installed here:
~/.local/share/octave/api-v57/packages/statistics-1.5.2/chi2gof.m

My binary search suggests the problem is in these lines:

## @tex $$ \chi ^ 2 = \sum_{i=1}^N \left (O_i - E_i \right) ^ 2 / E_i $$
## @end tex

That is syntactically correct tex.

This substitution will eliminate the error message:

## @tex @math{ \chi ^ 2 = \sum_{i=1}^N \left (O_i - E_i \right) ^ 2 / E_i }
## @end tex

but there may be a better solution. 

I'm using Octave in a terminal window that could not display a typeset equation anyway.  The help text here includes:

     those bins, and computing the chi-square test statistic
     SUM((O-E).^2./E), where O is the observed counts and E is the
     expected counts.  This test statistic has an approximate

Jim Van Zandt <vanzandtj>

 

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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2022-12-23 mmuetzel Carbon-CopyRemoved 102357 -
    2022-12-23 mmuetzel Summary&quot;unusable help text&quot; error in chi2gof on installation [octave forge] (statistics) "unusable help text" error in chi2gof on installation
    2022-12-23 rik5 Carbon-CopyRemoved 72865 -
    2022-12-23 rik5 CategoryNone Octave Forge Package
        Item GroupInstallation Failure Unexpected Error or Warning

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