[PD] array comparison

[William Brent]

Oops - it's even easier:

I forgot that I included convenience methods that do all of these
operations in one shot.  All you need is:

[euclid old-snapshot(
|
[tabletool current-data]

You'll get the single number out of the left outlet.  That's the
square/sum/sqrt method.  The [taxi( method does the sum of absolute
values.



2010/10/13 William Brent <william.brent at gmail.com>:
> I haven't looked at your patch, but you could do this fairly easily
> using [tabletool].  In the case of one table, you can store the
> snapshot of old values in a table (called "old-snapshot"), then, if
> the new data is in a table called "current-data", do
>
> [subtract old-snapshot(
> |
> [tabletool current-data]
>
> You'll get the difference between the tables out of [tabletool]'s
> right outlet, which you can write to a third table, then use the [abs(
> and [sum( functions in [tabletool] to get an indication of how much
> change there actually was.  Instead of absolute value, you could also
> square everything, sum it, and take the square root.  Either way,
> you'll get a single number that indicates how much the current data
> differs from the old.
>
>
> William
>
>
> 2010/10/13 cristiano figueiró <crislists at gmail.com>:
>> Hi list,
>> I'm with a little problem here:
>> In the attached patch, imagine that the arrays are probabilities of
>> something (i.e. pitches),
>> i would like to automate something that would have the output:
>> "array1 is more stable than array2"
>> and thinking that the array would be changing it's values in real-time, this
>> comparison would be between an old snapshot and actual snapshot of the same
>> array.
>> I'm in deep trouble? :p
>> Thanks for help :)
>> Cristiano
>>
>>
>>
>>
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>
>
>
> --
> William Brent
> www.williambrent.com
>
> “Great minds flock together”
> Conflations: conversational idiom for the 21st century
>
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>



-- 
William Brent
www.williambrent.com

“Great minds flock together”
Conflations: conversational idiom for the 21st century

www.conflations.com