Re: [PD] array read -resize according to file ?

[IOhannes m zmölnig]

On 10/06/2016 06:00 PM, Raphaël Ilias wrote:
> For an array used as data storage (i.e. not audio), is there a way to load
> data from a file AND have it resized according to file's length ?
> ...like with soundfiler : [read -resize filename.wav tablename (

why don't you just use [soundfiler]?
(and store the data in binary rather than text, which will give
youhigher resolution with smaller files)

gfasrd
IOhannes



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Re: [PD] array read -resize according to file ?

[Miller Puckette]

Also, if the file has numbers on separate lines, you can use the "-cr" flag
to the "read" message to text to get each one on its own line in the
object - this should make it easier to manipulate.  But "array" objects are
much more efficient - it might be worth writing a loop that simply loads
the numbers from text into an array one by one at startup.

OTOH the "soundfiler" object really should be able to read/write ascii
numbers - that's been on my dolist for a decade or more.

cheers
Miller

On Fri, Oct 07, 2016 at 11:58:12AM +0200, Jack wrote:
> Le 07/10/2016 à 11:50, Jack a écrit :
> > If you need [array] or [table] to do operations on them, you could use :
> > [text define] to load your list of float,
> > [0( on [text size] to get the number of float in your text file.
> > 
> > Then use this number to resize your [array] and then load your textfile
> > in this array.
> 
> I think, it is better to do :
> [0( on [text get] (instead of reload the text file) and send result to
> [array set].
> ++
> 
> Jack
> 
> 
> > 
> > I don't test it, and maybe there is a more elegant way to achieve this.
> > ++
> > 
> > Jack
> > 
> > 
> > 
> > Le 07/10/2016 à 11:10, Raphaël Ilias a écrit :
> >> Hello  Jack,
> >>
> >> Yes [text] is great, but I'm currently using tables/arrays that I want
> >> to be stored on filesystem.
> >> I actually can [read array.txt ( containing an array (i.e. a list of
> >> floats) with [text], and the whole array is loaded as a list on first
> >> line, but I'm concerned about performance while loading/parsing data.
> >>
> >> Then this would mean using :
> >>
> >>   [0 $1 1 (
> >>|
> >>   [text get dataAsText]
> >>
> >> instead of :
> >>
> >>   [$1 (
> >>|
> >>   [tabread dataAsArray]
> >>
> >> I will give this solution a try, but I'm using quite large tables (more
> >> than 10,000 float values)... do you think it's as fast as [tabread] ?
> >>
> >> (PS : I'm also looking for a way to know if a specified file (giving its
> >> path) exists or not. I did this once with the [shell] external, but I
> >> would prefer a vanilla solution...)
> >>
> >> have a nice day,
> >>
> >> Raphaël
> >>
> >> 2016-10-06 18:08 GMT+02:00 Jack >:
> >>
> >> Hello Raphaël,
> >>
> >> For textfiles ?
> >> Maybe you should use [text] ?
> >> ++
> >>
> >> Jack
> >>
> >>
> >>
> >> Le 06/10/2016 à 18:00, Raphaël Ilias a écrit :
> >> > Hello list
> >> >
> >> > For an array used as data storage (i.e. not audio), is there a way to
> >> > load data from a file AND have it resized according to file's length 
> >> ?
> >> > ...like with soundfiler : [read -resize filename.wav tablename (
> >> >
> >> > I want to load textfiles into arrays but their may vary and cannot be
> >> > predicted...
> >> >
> >> > I feel my english isn't very clear today ! So I attached an example 
> >> patch.
> >> >
> >> > Any idea ?
> >> >
> >> > have a good day !
> >> >
> >> > --
> >> > Raphaël Ilias
> >> >   ___
> >> > * phae.fr  *
> >> >  10 rue des Deux Haies - 49100 Angers / France
> >> >  phae.il...@gmail.com 
> >> > / 06 04
> >> 45 79 78 
> >> >   ___
> >> >
> >> >
> >> > ___
> >> > Pd-list@lists.iem.at  mailing list
> >> > UNSUBSCRIBE and account-management ->
> >> https://lists.puredata.info/listinfo/pd-list
> >> 
> >> >
> >>
> >>
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> >>
> >>
> > 
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Re: [PD] array read -resize according to file ?

[Jack]

Le 07/10/2016 à 11:50, Jack a écrit :
> If you need [array] or [table] to do operations on them, you could use :
> [text define] to load your list of float,
> [0( on [text size] to get the number of float in your text file.
> 
> Then use this number to resize your [array] and then load your textfile
> in this array.

I think, it is better to do :
[0( on [text get] (instead of reload the text file) and send result to
[array set].
++

Jack


> 
> I don't test it, and maybe there is a more elegant way to achieve this.
> ++
> 
> Jack
> 
> 
> 
> Le 07/10/2016 à 11:10, Raphaël Ilias a écrit :
>> Hello  Jack,
>>
>> Yes [text] is great, but I'm currently using tables/arrays that I want
>> to be stored on filesystem.
>> I actually can [read array.txt ( containing an array (i.e. a list of
>> floats) with [text], and the whole array is loaded as a list on first
>> line, but I'm concerned about performance while loading/parsing data.
>>
>> Then this would mean using :
>>
>>   [0 $1 1 (
>>|
>>   [text get dataAsText]
>>
>> instead of :
>>
>>   [$1 (
>>|
>>   [tabread dataAsArray]
>>
>> I will give this solution a try, but I'm using quite large tables (more
>> than 10,000 float values)... do you think it's as fast as [tabread] ?
>>
>> (PS : I'm also looking for a way to know if a specified file (giving its
>> path) exists or not. I did this once with the [shell] external, but I
>> would prefer a vanilla solution...)
>>
>> have a nice day,
>>
>> Raphaël
>>
>> 2016-10-06 18:08 GMT+02:00 Jack >:
>>
>> Hello Raphaël,
>>
>> For textfiles ?
>> Maybe you should use [text] ?
>> ++
>>
>> Jack
>>
>>
>>
>> Le 06/10/2016 à 18:00, Raphaël Ilias a écrit :
>> > Hello list
>> >
>> > For an array used as data storage (i.e. not audio), is there a way to
>> > load data from a file AND have it resized according to file's length ?
>> > ...like with soundfiler : [read -resize filename.wav tablename (
>> >
>> > I want to load textfiles into arrays but their may vary and cannot be
>> > predicted...
>> >
>> > I feel my english isn't very clear today ! So I attached an example 
>> patch.
>> >
>> > Any idea ?
>> >
>> > have a good day !
>> >
>> > --
>> > Raphaël Ilias
>> >   ___
>> > * phae.fr  *
>> >  10 rue des Deux Haies - 49100 Angers / France
>> >  phae.il...@gmail.com 
>> > / 06 04
>> 45 79 78 
>> >   ___
>> >
>> >
>> > ___
>> > Pd-list@lists.iem.at  mailing list
>> > UNSUBSCRIBE and account-management ->
>> https://lists.puredata.info/listinfo/pd-list
>> 
>> >
>>
>>
>> ___
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>> UNSUBSCRIBE and account-management ->
>> https://lists.puredata.info/listinfo/pd-list
>> 
>>
>>
> 
> 
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Re: [PD] array read -resize according to file ?

[Jack]

If you need [array] or [table] to do operations on them, you could use :
[text define] to load your list of float,
[0( on [text size] to get the number of float in your text file.

Then use this number to resize your [array] and then load your textfile
in this array.

I don't test it, and maybe there is a more elegant way to achieve this.
++

Jack



Le 07/10/2016 à 11:10, Raphaël Ilias a écrit :
> Hello  Jack,
> 
> Yes [text] is great, but I'm currently using tables/arrays that I want
> to be stored on filesystem.
> I actually can [read array.txt ( containing an array (i.e. a list of
> floats) with [text], and the whole array is loaded as a list on first
> line, but I'm concerned about performance while loading/parsing data.
> 
> Then this would mean using :
> 
>   [0 $1 1 (
>|
>   [text get dataAsText]
> 
> instead of :
> 
>   [$1 (
>|
>   [tabread dataAsArray]
> 
> I will give this solution a try, but I'm using quite large tables (more
> than 10,000 float values)... do you think it's as fast as [tabread] ?
> 
> (PS : I'm also looking for a way to know if a specified file (giving its
> path) exists or not. I did this once with the [shell] external, but I
> would prefer a vanilla solution...)
> 
> have a nice day,
> 
> Raphaël
> 
> 2016-10-06 18:08 GMT+02:00 Jack >:
> 
> Hello Raphaël,
> 
> For textfiles ?
> Maybe you should use [text] ?
> ++
> 
> Jack
> 
> 
> 
> Le 06/10/2016 à 18:00, Raphaël Ilias a écrit :
> > Hello list
> >
> > For an array used as data storage (i.e. not audio), is there a way to
> > load data from a file AND have it resized according to file's length ?
> > ...like with soundfiler : [read -resize filename.wav tablename (
> >
> > I want to load textfiles into arrays but their may vary and cannot be
> > predicted...
> >
> > I feel my english isn't very clear today ! So I attached an example 
> patch.
> >
> > Any idea ?
> >
> > have a good day !
> >
> > --
> > Raphaël Ilias
> >   ___
> > * phae.fr  *
> >  10 rue des Deux Haies - 49100 Angers / France
> >  phae.il...@gmail.com 
> > / 06 04
> 45 79 78 
> >   ___
> >
> >
> > ___
> > Pd-list@lists.iem.at  mailing list
> > UNSUBSCRIBE and account-management ->
> https://lists.puredata.info/listinfo/pd-list
> 
> >
> 
> 
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Re: [PD] array read -resize according to file ?

[Raphaël Ilias]

Hello  Jack,

Yes [text] is great, but I'm currently using tables/arrays that I want to
be stored on filesystem.
I actually can [read array.txt ( containing an array (i.e. a list of
floats) with [text], and the whole array is loaded as a list on first line,
but I'm concerned about performance while loading/parsing data.

Then this would mean using :

  [0 $1 1 (
   |
  [text get dataAsText]

instead of :

  [$1 (
   |
  [tabread dataAsArray]

I will give this solution a try, but I'm using quite large tables (more
than 10,000 float values)... do you think it's as fast as [tabread] ?

(PS : I'm also looking for a way to know if a specified file (giving its
path) exists or not. I did this once with the [shell] external, but I would
prefer a vanilla solution...)

have a nice day,

Raphaël

2016-10-06 18:08 GMT+02:00 Jack :

> Hello Raphaël,
>
> For textfiles ?
> Maybe you should use [text] ?
> ++
>
> Jack
>
>
>
> Le 06/10/2016 à 18:00, Raphaël Ilias a écrit :
> > Hello list
> >
> > For an array used as data storage (i.e. not audio), is there a way to
> > load data from a file AND have it resized according to file's length ?
> > ...like with soundfiler : [read -resize filename.wav tablename (
> >
> > I want to load textfiles into arrays but their may vary and cannot be
> > predicted...
> >
> > I feel my english isn't very clear today ! So I attached an example
> patch.
> >
> > Any idea ?
> >
> > have a good day !
> >
> > --
> > Raphaël Ilias
> >   ___
> > * phae.fr *
> >  10 rue des Deux Haies - 49100 Angers / France
> >  phae.il...@gmail.com  / 06 04 45 79 78
> >   ___
> >
> >
> > ___
> > Pd-list@lists.iem.at mailing list
> > UNSUBSCRIBE and account-management -> https://lists.puredata.info/
> listinfo/pd-list
> >
>
>
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Re: [PD] array read -resize according to file ?

[Jack]

Hello Raphaël,

For textfiles ?
Maybe you should use [text] ?
++

Jack



Le 06/10/2016 à 18:00, Raphaël Ilias a écrit :
> Hello list
> 
> For an array used as data storage (i.e. not audio), is there a way to
> load data from a file AND have it resized according to file's length ?
> ...like with soundfiler : [read -resize filename.wav tablename (
> 
> I want to load textfiles into arrays but their may vary and cannot be
> predicted...
> 
> I feel my english isn't very clear today ! So I attached an example patch.
> 
> Any idea ?
> 
> have a good day !
> 
> -- 
> Raphaël Ilias
>   ___
> * phae.fr *
>  10 rue des Deux Haies - 49100 Angers / France
>  phae.il...@gmail.com  / 06 04 45 79 78
>   ___
> 
> 
> ___
> Pd-list@lists.iem.at mailing list
> UNSUBSCRIBE and account-management -> 
> https://lists.puredata.info/listinfo/pd-list
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