Kare Edvardsen writes
>
> I have two 2d piddles, $x and $y, with
> equal size, and
>
> > wcols $x->slice("(0),:"), $y->slice("(1),:")
>
> does not work???

Works for me.

> If I do
>
> > $a = $x->slice("(0),:"); $b = $y->slice("(1),:")
> > wcols $a, $b
>
> everything works great!, Why???

This works too.

If you have a problem with PDL, we can better
help if you send an example code that demonstrates
the problem in the perldl shell, or a perl/PDL program.

For example, the code that I tried out follows.

Does it work for you?

If not, what was the output?

Cheers,
Chris

SAMPLE PROBLEM REPORT EXAMPLE:
===========================

perldl> $x = sequence(10,9)                                                     
                                                           

perldl> $y = sequence(10,9)                                                     
                                                           

perldl> ?vars                                                                   
                                                           
PDL variables in package main::

Name         Type   Dimension       Flow  State          Mem
----------------------------------------------------------------
$y           Double D [10,9]               P            0.70Kb 
$x           Double D [10,9]               P            0.70Kb 

perldl> wcols $x->slice("(0),:"), $y->slice("(1),:")                            
                                                           
0  1  
10  11  
20  21  
30  31  
40  41  
50  51  
60  61  
70  71  
80  81  

perldl> $a = $x->slice("(0),:"); $b = $y->slice("(1),:")                        
                                                           

perldl> wcols $a, $b                                                            
                                                           
0  1  
10  11  
20  21  
30  31  
40  41  
50  51  
60  61  
70  71  
80  81  



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