[Octave-bug-tracker] [bug #63791] [octave-forge] (Statistics) movmean error message

[Liang Tang]

Follow-up Comment #2, bug #63791 (project octave):

Hi Dmitri,

I got the same message from 8.0 Feb 3 overnight build: 

>> version
ans = 8.0.91
>> v=movmean(rand(1000000,1), 513);
error: out of memory or dimension too large for Octave's index type
error: called from
    movfun>movfun_oncol at line 299 column 10
    movfun at line 282 column 14
    movmean at line 138 column 5

I think movmean might be hitting the physical memory limitation. My suggestion
is, on your least capable equipment, increase 1000000 or 513 until it fails. 
Then ask the question, why is the required memory so high compared to the data
being processed. 

I had this issue in the past.  So I actually had to do my own movmean to avoid
this problem.  Even with this issue, I can also  segment the data into smaller
overlaid chunks and force it through. But there is no reason that I don't
merge back to the standard form of statistics package.    
 


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