Hi Guillermo,

You may still be having a problem, but you have yet to tell us what it is. The 
code you sent works fine, including as many dimensions as you like (because all 
acts on the whole ndarray at once).

If there's a problem in there, please share it :-)

Best regards,
Ed

________________________________
From: Guillermo P. Ortiz <gor...@exa.unne.edu.ar>
Sent: 20 January 2025 23:35
To: Ed . <ej...@hotmail.com>
Cc: pdl-devel@lists.sourceforge.net <pdl-devel@lists.sourceforge.net>; perldl 
<pdl-gene...@lists.sourceforge.net>
Subject: Re: [Pdl-devel] conditional inline

Thanks Ed,
Using ternary conditional expression
I still have some problem with múltiple disensión case.
See my example in message befare


El El lun, 20 ene 2025 a la(s) 19:31, Ed . 
<ej...@hotmail.com<mailto:ej...@hotmail.com>> escribió:
Hi Guillermo,

You can do that indeed, that's just Perl. If you wanted to do operations on a 
subset of that ndarray, then you'd do e.g.

$pdl->where(($pdl-0.5)->abs < 0.2) *= 5;

An observation is that the above condition could be a bit shorter by using the 
recently-added approx_artol: (which would also mean it ran quicker)

$pdl->approx_artol(0.5, 0.2)

Best regards,
Ed

________________________________
From: Guillermo P. Ortiz <gor...@exa.unne.edu.ar<mailto:gor...@exa.unne.edu.ar>>
Sent: 20 January 2025 19:39
To: pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> 
<pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net>>; 
perldl 
<pdl-gene...@lists.sourceforge.net<mailto:pdl-gene...@lists.sourceforge.net>>
Subject: [Pdl-devel] conditional inline

Hello !

I am not sure, but maybe It is possible to do with perl PDL something
like this?

$ndarray= condition on $ndarray ? assign when true : assign when false

for example:

$x=zeroes(20)->xlinvals(0,1);

$y=(all abs($x-0.5)<0.2)?$x**2:$x;

Thanks in advance

Regards

--


Dr. Guillermo P. Ortiz
Electromagnetismo Aplicado
Dto. Física, Facultad de Ciencias Exactas
Universidad Nacional del Nordeste
Avda Libertad 
5460<https://www.google.com/maps/search/Avda+Libertad+5460?entry=gmail&source=g>,
 Campus UNNE.
W3404AAS Corrientes, Argentina.
(+54) 379-4424678 interno 4613
gortiz at unne edu ar
_______________________________________________
pdl-devel mailing list
pdl-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/pdl-devel

Reply via email to