Re: dimensions in a multidimensional array

2021-02-06 Thread Theo van den Heuvel
Hello Liz, I was indeed talking about the unshaped situation. BTW. I am growing more and more fond of raku, Thanks, Theo Elizabeth Mattijsen schreef op 2021-02-05 16:06: On 5 Feb 2021, at 15:49, Theo van den Heuvel wrote: I cannot seem to find an idiomatic way to get the dimensions of a

Re: dimensions in a multidimensional array

2021-02-05 Thread Matthew Stuckwisch
I think he meant doing something like this (with fuller handling for out of bounds, exceptions throwing, slices, etc): role Shaped[*@dimensions] { has @!multipliers = @dimensions.reverse.produce(&[*])[0..*-2].reverse.Slip, 1; method AT-POS(*@indices where all @dimensions Z>

Re: dimensions in a multidimensional array

2021-02-05 Thread Wesley Peng
When will we have p6’s Numpy? On Sat, Feb 6, 2021, at 2:04 AM, Brad Gilbert wrote: > There is a reason that you can't just ask for the dimensions of an > unspecified multidimensional array. > It may be multiple dimensions. > > [[1,2,3], > [4,5,6,7,8,9,10]].shape > > If it gave a

Re: dimensions in a multidimensional array

2021-02-05 Thread Brad Gilbert
There is a reason that you can't just ask for the dimensions of an unspecified multidimensional array. It may be multiple dimensions. [[1,2,3], [4,5,6,7,8,9,10]].shape If it gave a result it would be something like: (2,3|7) On Fri, Feb 5, 2021 at 8:50 AM Theo van den Heuvel wrote:

Re: dimensions in a multidimensional array

2021-02-05 Thread Timo Paulssen
Shaped Arrays and Native Shaped Arrays already use one contiguous blob to store all their data; in Shaped Arrays that's an array of pointers to the stored objects, in a Native Shaped Array it'll be like a big array of 32bit integers or whatever you have. Regards   - Timo On 05/02/2021 16:48,

Re: dimensions in a multidimensional array

2021-02-05 Thread yary
This got me interested in https://docs.raku.org/language/list#index-entry-Shaped_arrays and I find myself wanting to implement a role "Shaped" and applying it to List, for an immutable shaped list, whose implementation packs its elements for o(1) lookup... on my ever-lengthening to-do list -y

Re: dimensions in a multidimensional array

2021-02-05 Thread Elizabeth Mattijsen
> On 5 Feb 2021, at 15:49, Theo van den Heuvel wrote: > I cannot seem to find an idiomatic way to get the dimensions of a > multidimensional array, > other than by looking at the size of the first row and column, with > @m[0;*].elems and @m[*;0].elems. > Am I missing something in the docs? If